bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Preparation and Characterization of Some Uranium(VI) Complexes of N,N′‐Bis(o‐hydroxyaryl)aldimino Schiff Bases.
Authors: ERK B. , GUENDUEZ N. +
Published: May 2016

Schiff bases such as (I) or (II), prepared by condensation of the corresponding diamines and aldehydes, react with UO2+ ions to give stable chelate complexes such as (III) (16 examples, 65‐83% yield) with polymeric structure, which is assigned by IR and UV spectra and supported by the high decomposition point and low solubilities of the complexes.
ChemInform Abstract: Reactions of the Dicarbonyl Complexes Re2X4(dppm)2(CO)2 (X: Cl, Br) and the Mixed Carbonyl‐Isocyanide Complexes Re2Cl4(dppm)2(CO)(CNR) (R: tBu, Xylyl) with Trimethylphosphine and Trialkyl Phosphite Ligands. Structural Characterization of the Complexes (Re2Cl3(μ‐dppm)2(CO)2L)PF6 (L: PMe3, P(OEt)3) That Contain an Unsymmetrical Carbonyl Bridge.
Authors: QI J. , FANWICK P. E. , WALTON R. A.
Published: May 2016

The complexes (III) and the tribromo analogue of (IIIa) (yield 34%) are obtained within 24 and 28 h. In the case of the reaction between (I) and (IIa), long reaction times lead to the neutral paramagnetic complex (IV) which can also be synthesized from (IIIa) by reversibly chemical reduction in 68% yield using cobaltocene.
ChemInform Abstract: Rhenium 2‐Oxoalkyl (Enolate) Complexes: Synthesis and Carbon‐Carbon Bond‐Forming Reactions with Nitriles.
Authors: STACK J. G. , DONEY J. J. , BERGMAN R. G. , HEATHCOCK C. H.
Published: May 2016

The 2‐oxoalkyl‐Re complexes (III) + (IV) and (VI) are prepared starting with the in situ generated carbonylrhenates (I) and (V) as shown in the scheme.
ChemInform Abstract: Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 96. Reactions with Phosphaalkynes; Crystal Structures of (WFe(μ‐C(C6H4Me‐4)PC(tBu)(CO)5)(η‐C5Me5)) and (MoFe(μ‐C(C6H4Me‐4)C(tBu)P)(μ‐CO)(CO)3(PMe3)(η‐C5H5)).
Authors: DARE H. F. , HOWARD J. A. K. , SPANIOL T. P. , STONE F. G. A. , SZAMEITAT J.
Published: May 2016

Electronically unsaturated dimetal compounds of type (I) react with the phosphaalkynes (II) to give complexes of type (III) (yields 49‐75%).
ChemInform Abstract: Chemistry of Carbonyl‐Derived Ligands. Nucleophilic Attack on Anionic Acetylide Clusters.
Authors: JENSEN M. P. , SABAT M. , JOHNSTON D. H. , JONES L. M. , SHRIVER D. F.
Published: May 2016

The triiron nonacarbonyl acetylide clusters (I) and (IV), which are derived from the iron ketenylidene (PPN)2(Fe3(CO)9CCO), add a single phosphine (II).
ChemInform Abstract: Selective Preparation of Unusual π‐Adducts of the Functional Arenes Diphenylacetylene, Phenol, and Benzoic Acid with the CpRu+ Fragment (Cp = C5Me5).
Authors: CHAUDRET B. , HE X. , HUANG Y.
Published: May 2016

The ruthenium complex salt (IV), prepared by addition of trifluoromethanesulfonic acid (II) and methanol (III) to the cyclopentadienylruthenium complex (I), reacts with diphenylacetylene (V), benzoic acid (VIII), or phenol (XI) to give the η6‐arene derivatives (VI), (VII), (X), or (XII).
ChemInform Abstract: Synthetic and Structural Studies on (η5:η5‐Fulvalene)bimetallic Compounds Derived from (η5:η5‐Fulvalene)dithallium.
Authors: RAUSCH M. D. , SPINK W. C. , CONWAY B. G. , ROGERS R. D. , ATWOOD J. L.
Published: May 2016

The air‐sensitive dithallium compound (III) reacts with carbonyl halides of Rh, e.g. (IV), and Co, Ir, Mn, and Re to produce the corresponding homobimetallic fulvalene metal carbonyls (V) ((Va) and (Vb) (M: Mn) both space group P21/c, Z=2; (Vc) (M: Mn) P21/n, Z=2).
ChemInform Abstract: Potential Ambergris Odorants from Abietic Acid.
Authors: CAMBIE R. C. , FRANICH R. A. , LARSEN D. , RUTLEDGE P. S. , RYAN G. R. , WOODGATE P. D.
Published: May 2016

In contrast to literature reports, the rearrangement of abietic acid (I) gives a mixture of the dienoic acids (II) and (III).
ChemInform Abstract: Synthesis of Three Retinal Models, Including the 10‐s‐cis‐Locked Retinal, all‐E‐12,19‐Methanoretinal.
Authors: GROESBEEK M. , VAN DER STEEN R. , VAN VLIET J. C. , VERTEGAAL L. B. J. , LUGTENBURG J.
Published: May 2016

Starting from β‐ionone (I), title compounds such as the 10‐s‐cis‐locked retinal (VIa) and its all‐E analogue (Xa) are prepared; the synthesis of the latter involves the use of the new synthon (IX).
ChemInform Abstract: The Ring Opening of Aziridine‐2‐carboxylate Esters with Organometallic Reagents.
Authors: BALDWIN J. E. , ADLINGTON R. M. , O'NEIL I. A. , SCHOFIELD C. , SPIVEY A. C. , SWEENEY J. B.
Published: May 2016

Reaction of the N‐tosylaziridinecarboxylate (I) with the Grignard compounds (II) results in ring opening and coupling to produce the protected amino acid esters (III) and (IV).
ChemInform Abstract: Organopalladium Approaches to Prostaglandins. Part 10. An Efficient Synthesis of Prostaglandin E2 via Vinylpalladation of 4‐Cyclopentene‐1,3‐diol.
Authors: LAROCK R. C. , KONDO F. , NARAYANAN K. , SYDNES L. K. , HSU M.‐F. H.
Published: May 2016

The (S)‐1‐octyn‐3‐ol (I) is converted to the mercurated and silylated allyl alcohol (V) via a four‐step reaction sequence.
ChemInform Abstract: An Improved Preparation of 2‐Methylene‐ and 2,3‐Dimethylenecephalosporins.
Authors: GUNDA T. E.
Published: May 2016

Improvement of the Mannich reactions (I) → (III) and (V) → (VI) becomes possible by the use of Et2NH·TFA (cat.).
ChemInform Abstract: Synthesis and Structure of the Novel Layered Phase CsTi2Cl7.
Authors: ZHANG J. , CORBETT J. D.
Published: May 2016

During investigations of the CsCl‐TiCl3‐Ti system the new ternary title compound with a novel structure type is found besides the already known CsTiCl3 (CsNiCl3 type; P63/mmc).
ChemInform Abstract: Effect of Pressure on the Electrical Conductivity of the Molten Dichlorides, Bromides and Iodides of Cadmium, Tin and Lead.
Authors: CLEAVER B. , KUMAR S. P.
Published: May 2016

The electrical conductivities of molten CdX2, SnX2, and PbX2 (X: Cl, Br, I) are measured at pressures of up to 100 MPa and temp. up to 170 K above the respective melting points.
ChemInform Abstract: The Solubility of CoCl2 in Molten NaCl‐AlCl3
Authors: WAI C. , BLOOM I. , CAVENY D. , BLANDER M.
Published: May 2016

is measured as a function of melt composition in the AlCl3 mol fraction range X(AlCl3) = 0.502‐0.669.
ChemInform Abstract: Preparation and Characterization of Some Lithium Insertion Anodes for Secondary Lithium Batteries.
Authors: ABRAHAM K. M. , PASQUARIELLO D. M. , WILLSTAEDT E. B.
Published: May 2016

An ambient temp. procedure for the preparation of LixWO2 (x = 0.5, 1.0), Lix Fe2O3 (1 ≦ x ≦ 6), and β‐LiAl is described which involves the in situ generation of Li‐naphthalide in THF.
ChemInform Abstract: Corrosion of Two Multicomponent Iron Base Metallic Glasses in Potassium Sulfate Solution.
Authors: SHARMA S. K. , MUKHOPADHYAY P. , CHAUHAN P. K. , KULKARNI S. K.
Published: May 2016

The corrosion behavior of the commercially important metallic glasses Fe81B13.5Si3.5C2 (METGLAS 2605SC) and Fe87Co18B14Si (METGLAS 2605CO) in 0.5 M K2SO4 solution of pH 4 is investigated by means of gravimetry, potentiostatic polarization measurements, AES and XPS.
ChemInform Abstract: One Step Synthesis of Hydrogen Peroxide Through Fuel Cell Reaction.
Authors: OTSUKA K. , YAMANAKA I.
Published: May 2016

In a new fuel cell system (O2, HCl aq.
ChemInform Abstract: Synthesis of Icosahedral Boranes Containing Bismuth.
Authors: LITTLE J. L. , WHITESELL M. A. , KESTER J. G. , FOLTING K. , TODD L. J.
Published: May 2016

The 1,2‐EBiB10H10 (E: P, As, Sb, Bi) compounds (III) are separated from the coproducts by column chromatography and characterized by 11B NMR spectroscopy.
ChemInform Abstract: Reduction of Alka‐2,4‐dienoic Acids with Sodium Dithionite.
Authors: CAMPS F. , COLL J. , GUITART J.
Published: May 2016

The dithionite reduction of various 2,4‐alkadienoic acids such as (I) or (III) is investigated (and compared with the related reaction under phase‐transfer conditions).
ChemInform Abstract: Structural Effects on the Yields of Singlet Molecular Oxygen (1δgO2) from Alkylperoxyl Radical Recombination.
Authors: NIU Q. , MENDENHALL G. D.
Published: May 2016

The yields of singlet oxygen from prim. peroxyl radicals such as (I) range from 3.4 to 6.0% and from 3.9 to 14.0% for sec. peroxyl radicals derived from e.g. cyclohexane (6.7%).
ChemInform Abstract: Cyclic Carbonate Ester of 4‐Nitrocatechol. Reactions with Amines.
Authors: LAUFER D. A. , DOYLE K. , ZHANG X.
Published: May 2016

The reaction of 4‐nitrocatechol (I) with triphosgene (II) yields the carbonate (III) which reacts with an excess of the amines (IV) to form the symmetric ureas (V).
ChemInform Abstract: Synthesis of 7‐Hydroxy‐4‐benzofuranacetic Acid.
Authors: KESTEN S. J. , PATTISON I. C. , GOEL O. P.
Published: May 2016

The aldehyde (I) is converted to the benzofurancarbonitrile (III) which is acylated to give the derivative (V).
ChemInform Abstract: Synthesis and Derivatization of Novel 4‐Aroylthiophene‐ and ‐furan‐2‐sulfonamides.
Authors: HARTMAN G. D. , HALCZENKO W.
Published: May 2016

As part of a program to prepare carbonic anhydrase inhibitors for use as topically effective ocular anti‐hypertensive agents, the novel 4‐aroylthiophene‐ and ‐furan‐2‐sulfonamides (V) are synthesized via electrophilic aromatic sulfonation of the 3‐aroyl heterocycles derived from the bromides (I).
ChemInform Abstract: Synthesis and Characterization of Iodobenzamide Analogues: Potential D‐2 Dopamine Receptor Imaging Agents.
Authors: MURPHY R. A. , KUNG H. F. , KUNG M.‐P. , BILLINGS J.
Published: May 2016

Reaction of the bromonaphthalenecarboxylic acid chloride (I) with the (S)‐(‐)‐(aminomethyl)pyrrolidine (II) yields the amide (III) which is converted to the desired iodonaphthalene (VI) via the stannyl derivative (V).
ChemInform Abstract: Novel Transformation of Azabicyclothionocarbonate to Azaspirolactone.
Authors: HARUSAWA S. , SHIBATA N. , YAMAZAKI N. , SAKANOUE S. , ISHIDA T. , YONEDA R. , KURIHARA T.
Published: May 2016

Starting with the hexadiynedicarboxylate (I), the thiocarbonates (VIII) mentioned in the title are prepared in a 5‐step reaction sequence.
ChemInform Abstract: Synthesis and Serotonin Binding Site Studies of Some Conformationally Restricted Indolylethylamine Analogues Based on 2‐Amino‐3‐(3′‐indolyl)bicyclo(2.2.2)octane.
Authors: SCHLECHT M. F. , TSAROUHTSIS D. , LIPOVAC M. N. , DEBLER E. A.
Published: May 2016

One‐pot reaction of indole‐3‐acetaldehyde (I) with the secondary amines (II) and cyclohexanone (III) yields the corresponding bicyclo(2.2.2)octanones (IV) and (V) via indolyl enamines.
ChemInform Abstract: Some Carbazole and Carboline Quinones and an Unexpected Demethoxylation Reaction.
Authors: PARRICK J. , YAHYA A.
Published: May 2016

The tetrahydrodimethoxycarbazole (I), readily prepared from 2‐chlorocyclohexanone and 2,5‐dimethoxyaniline, and the known triazolopyridine (IV) are used as starting materials for the syntheses of the carbazole quinones (II)/(III) and the carboline quinone (VII) respectively.
ChemInform Abstract: Stereospecific Synthesis of Functionalized Cyclopentanes.
Authors: HASSNER A. , MAURYA R.
Published: May 2016

The compounds (I) are deprotonated to give the salts (II) which immediately react with the O‐silyl α‐bromo aldoximes (III) to form the oximes (IV).
ChemInform Abstract: The Syntheses of 5‐Amino‐3‐t‐butylisothiazole and 3‐Amino‐5‐t‐butylisothiazole.
Authors: HACKLER R. E. , BUROW K. W. JUN. , KASTER S. V. , WICKISER D. I.
Published: May 2016

A general synthesis of the 5‐amino‐3‐alkylisothiazoles (VI) is described.
ChemInform Abstract: Synthesis and Identification of 4‐Methyl‐N‐(4H‐1,2,4‐triazol‐4‐yl)‐2‐benzothiazolamine, an Impurity in the Synthesis of Tricyclazole.
Authors: DREIKORN B. A. , UNGER P.
Published: May 2016

Many attempts are reported to synthesize the by‐product (III) formed in the synthesis of tricyclazole (II), the major constituent of a rice blast fungicide.
ChemInform Abstract: Cyclisation of Alkynecarboxylic Acids: Synthesis and Reactions of 6‐Methylene‐1,4‐oxathian‐2‐ones and Their 4,4‐Dioxides.
Authors: YAMAMOTO M. , MUNAKATA H. , HUSSEIN M. Z. , KOHMOTO S. , YAMADA K.
Published: May 2016

The synthesis of the title compounds (II) and (IV) is described.
ChemInform Abstract: Pyridazines. Part 50. Syntheses and Reactions of Phenyl(3‐pyridazinyl)methane Derivatives.
Authors: HEINISCH G. , HUBER T.
Published: May 2016

Starting from the well accessible 3‐cyanopyridazine (I), the phenyl 3‐pyridazinyl ketone (III) is prepared by a novel procedure in improved yield.
ChemInform Abstract: Chemistry of 5‐Propynyloxy‐ and 5‐Propynylthiopyrimidines: New Syntheses of Furo‐ and Thieno(3,2‐d)pyrimidines.
Authors: SPADA M. R. , KLEIN R. S. , OTTER B. A.
Published: May 2016

From studies with synthetic C‐nucleosides it is known that compounds containing the furo‐ or thieno(3,2‐d)pyrimidine unit can function as purine antimetabolites and elicit a variety of biological effects.
ChemInform Abstract: Condensed Thienopyrimidines. Part 4. Synthesis and Gastric Antisecretory Activity of 2,3‐Dihydro‐5H‐oxazolothienopyrimidine Derivatives.
Authors: SUGIYAMA M. , SAKAMOTO T. , TABATA K. , FUKUMI H.
Published: May 2016

Ten aminothiophenecarboxylates such as (Ia) ‐ (Id) are reduced with LiAlH4, subsequently oxidized with manganese dioxide and then coupled with ethanolamine (II) to give the azomethines (III).
ChemInform Abstract: (2.2)(2,6)‐ and (2.2)(2,5)Pyrazinophanes: Synthesis and Molecular Structure.
Authors: EIERMANN U. , KRIEGER C. , NEUGEBAUER F. A. , STAAB H. A.
Published: May 2016

The title compounds (VI), (XII), and (XIII) are synthesized by two different methods: either by photolytic sulfur extrusion from a dithiapyrazinophane such as (V) or by Hofmann elimination reaction of the appropriate (pyrazinylmethyl)trimethylammonium hydroxides from readily obtainable salts such as (IX), followed by dimerization of the generated dimethylenepyrazine species, e.g. (X).
ChemInform Abstract: Reinvestigation of a 5H‐Dibenzo(d,h)(1,3,6)triazonine Synthesis.
Authors: PEET N. P. , SUNDER S. , BARBUCH R. J. , WHALON M. R. , HUBER E. W. , HUFFMAN J. C.
Published: May 2016

Treatment of the aminobenzophenone (III) with o‐phenylenediamine, Ac‐OH (II), and NaO‐Ac gives the acetyl derivative (I) rather than the compound (V) as previously reported.
ChemInform Abstract: Synthesis of Primary and Secondary Phosphines by Selective Alkylation of PH3 Under Phase Transfer Conditions.
Authors: LANGHANS K. P. , STELZER O. , SVARA J. , WEFERLING N.
Published: May 2016

Prim. phosphines such as (III) may be synthesized selectively by alkylation of PH3 (I) with alkyl halides R1X (X: Cl or Br) and either conc.
ChemInform Abstract: Synthesis and Coordination Ability of Selenoalkynes R‐Se‐CC‐R′.
Authors: LANG H. , KELLER H. , IMHOF W. , MARTIN S.
Published: May 2016

Among others the described reactions are discussed as synthetic methods for the preparation of selenoalkynes such as (III).
ChemInform Abstract: Reactions of β‐CH Agostic Alkenylzirconocene Complexes.
Authors: ERKER G. , ZWETTLER R. , KRUEGER C. + , HYLA‐KRYSPIN I. , GLEITER R.
Published: May 2016

The photolysis products (IIIa) (C2/c, Z=4) and (II) are also formed by an anomalous course in the hydrozirconation of Ph‐C≡C‐SiMe3 probably via a secondary reaction of (I).
ChemInform Abstract: Binuclear Vanadium Complexes Containing Sulfur and Selenium Ligands: The Reactions of the Half‐Sandwich Compounds CpV(CO)4 and Cp*V(CO)4 with Dichalcogenides E2R2 (E: S, Se; R: Me, Ph). The X‐Ray Crystallographic Structures of Cp*2V2(CO)4(μ‐SR)2 (R: Me, Ph; Cp*: C5Me5).
Authors: HERBERHOLD M. , KUHNLEIN M. , KREMNITZ W. , RHEINGOLD A. L.
Published: May 2016

The photo‐induced reaction of (I) with dichalcogenides as well as the thermal reaction of the kinetically labile derivative (III) are also carried out with the unsubstituted cyclopentadienyl analogues under identical conditions.
ChemInform Abstract: Organic Syntheses via Transition Metal Complexes. Part 40. Pyrroles by Metal‐Induced (3 + 2) Cycloadditions of 2‐Azaallenyl (= Iminocarbene) Complexes with Transfer of a CNC Unit to Alkynes; a Chromacyclopropene Complex by Cyclocarbonylation of a 1‐Aminoalkyne.
Authors: AUMANN R. , HEINEN H. , KRUEGER C. + , BETZ P.
Published: May 2016

The 2‐azaallenyl‐Cr complex (I) adds to the polarized alkyne (II) to give the 2H‐pyrrole complex (III) (space group P21/n, Z=4) in a metal‐induced (3 + 2) cycloaddition.
ChemInform Abstract: Synthesis and Properties of Chiral Rhenium Ether Complexes of the Formula ((η5‐C5H5)Re(NO)(PPh3)(OR2))+X‐.
Authors: AGBOSSOU S. K. , FERNANDEZ J. M. , GLADYSZ J. A.
Published: May 2016

The formation of ether complexes (V) in the reaction starting from (III) shows that aliphatic ethers are stronger bases than CH2Cl2 toward the 16‐electron Lewis acid fragment ((C5H5)Re(NO)(PPh3))+.
ChemInform Abstract: Rearranged Abietane Diterpenoids from the Root of Teucrium polium subsp. vincentinum.
Authors: CARREIRAS M. C. , RODRIGUEZ B. , DE LA TORRE M. C. , PERALES A. , TORRES M. R. , SAVONA G. , PIOZZI F.
Published: May 2016

Four new rearranged abietane derivatives teuvincenones A (Ia), B (Ib), C (II) and D (III), are isolated.
ChemInform Abstract: Synthesis and Biochemical Studies of 7‐Substituted 4,6‐Androstadiene‐3,17‐diones as Aromatase Inhibitors.
Authors: LI P.‐K. , BRUEGGEMEIER R. W.
Published: May 2016

Allylic oxidation of the protected dione (I) yields the androsten‐7‐one (II) which is treated with the organometallics (III).
ChemInform Abstract: Synthesis of (R)‐(‐)‐γ‐Amino‐β‐hydroxybutyric Acid (GABOB).
Authors: BOSE D. S. , GURJAR M. K.
Published: May 2016

The key step in the synthesis of the chiral amino acid (R)‐(‐)‐(XII) from the tartaric acid derivative (I) is the reductive degradation of the (aminomethyl)iodomethyldioxolane (VII), yielding the unsaturated amino alcohol (VIII) which is cyclized and N‐benzylated to give the oxazolidine (X).
ChemInform Abstract: Synthesis and Anti‐HIV Activity of Carbocyclic 2′,3′‐Didehydro‐2′,3′‐dideoxy 2,6‐Disubstituted Purine Nucleosides.
Authors: VINCE R. , HUA M.
Published: May 2016

Reaction of the dichloropyrimidine (I) with the hydroxymethylcyclopentylamines (II) yields the adducts (III) which are coupled with p‐chlorobenzenediazonium chloride (IV) and then reduced to give the triaminopyrimidines (VI).
ChemInform Abstract: 2‐Methyl‐4,5‐dihydroimidazole as a Doubly Nucleophilic Unit: Preparation of Dihydroimidazole Azaprostanoids.
Authors: JONES R. C. F. , SCHOFIELD J.
Published: May 2016

Starting from the title compound or its benzyl derivative (I), the 9,12‐ (VI) and 8,11‐diazaprostanoids (VIII) are prepared.
ChemInform Abstract: XeCl2: A van der Waals Molecule.
Authors: BIELER C. R. , JANDA K. C.
Published: May 2016

Using two‐laser pump‐probe spectroscopy, the XeCl2 B ← X transition is observed.
ChemInform Abstract: Chemical Effects in the X‐Ray Emission (F Kα) and X‐Ray Photoelectron Spectra of Alkali‐Metal and Alkaline‐Earth‐Metal Fluorides.
Authors: HESSABI R. , URCH D. S.
Published: May 2016

The results reported for LiF, NaF, KF, BeF2, MgF2, CaF2, SrF2, and BaF2 demonstrate that the combination of X‐ray emission (XE) and XPS can be used to investigate the electronic structure of these fluorides.
ChemInform Abstract: Crystallization Processes in Boron‐ and Hydrogen‐Containing Ultrafine Powders
Authors: DRAGIEVA I. , RUSEV KR. , STANIMIROVA M.
Published: May 2016

are studied for amorphous powders prepared by reaction of cobalt salts with sodium borohydride.
ChemInform Abstract: Optical and Mechanical Properties of Hot‐Pressed Cesium Iodide.
Authors: KIM H.‐E. , MOORHEAD A. J.
Published: May 2016

Polycrystalline CsI disks are prepared by hot‐pressing (N2 atmosphere) and the densification behavior and microstructural changes during hot‐pressing are studied.
ChemInform Abstract: Hemicarcerands Permit Entrance to and Egress from Their Inside Phases with High Structural Recognition and Activation Free Energies.
Authors: TANNER M. E. , KNOBLER C. B. , CRAM D. J.
Published: May 2016

The hemicarcerand (I) permits entrance of guests such as DMSO (yield 51%), N,N‐dimethylacetamide (42%), and DMF (20%), the latter hemicarceplex being crystallized from CHCl3/MeCN as (I)·DMF·2 CHCl3·2 MeCN; space group: Pbna, Z=4.
ChemInform Abstract: Controlling the Regiochemistry of Nucleophilic Attack on Unsymmetrical Allyl Complexes.
Authors: FALLER J. W. , LAMBERT C. , MAZZIERI M. R.
Published: May 2016

The NO and CO ligands in η3‐allylmolybdenum complexes exert different electronic effects on the allyl moiety and control the regiochemistry of nucleophilic attack.
ChemInform Abstract: The Reactivity of Some Primary Amines in SN2Ar Reactions with 2‐Chloro‐3,5‐dinitropyridine.
Authors: BRENELLI E. C. S. , MORAN P. J. S.
Published: May 2016

The rate constants for SN2Ar reactions of (I) with butylamine, glycine, glycylglycine and ethylenediamine monohydrochloride in H2O are determined.
ChemInform Abstract: Organometallic Nitrosyl Chemistry. Part 41. Regiospecific Condensation of Methyl Propiolate with 2,3‐Dimethyl‐2‐butene Mediated by the Electrophilic η5‐Cyclopentadienyl Dinitrosyl Tetrafluoroborate Salts of the Group 6 Metals.
Authors: LEGZDINS P. , RICHTER‐ADDO G. B. , EINSTEIN F. W. B. , JONES R. H.
Published: May 2016

The compounds (II) behave as formally 16‐electron cations during their reactions with various nucleophiles.
ChemInform Abstract: Generation and Trapping of 2‐ and 3‐Pyridylhalogenocarbenes from Diazirines.
Authors: BAIRD M. S. , BRUCE I.
Published: May 2016

The 2‐pyridylchlorocarbene derived from the thermolysis of the diazirine (I) reacts with electron‐poor and electron‐rich alkenes such as (II) to give adducts of type (III) and (IV).
ChemInform Abstract: Imines and Derivatives. Part 24. Nitrone Synthesis by Imine Oxidation Using Either a Peroxyacid or Dimethyldioxirane.
Authors: BOYD D. R. , COULTER P. B. , MCGUCKIN M. R. , SHARMA N. D. , JENNINGS W. B. , WILSON V. E.
Published: May 2016

Oxidation of imines, e.g. (I), by MCPBA occurs normally with formation of oxaziridines, e.g. (II).
ChemInform Abstract: Direct Esterification of 2‐Methoxy‐2‐phenyl‐3,3,3‐trifluoropropionic Acid: A Reinvestigation.
Authors: SVATOS A. , VALTEROVA I. , SAMAN D. , VRKOC J.
Published: May 2016

In the previously reported direct esterification of the enantiomeric title compounds (I) (MTPA) (activated by reagent (II) in the presence of DMAP), the ratio of the corresponding diastereomeric MTPA esters did not correspond to the actual proportion of enantiomers in the studied mixtures.
ChemInform Abstract: Reductive Dechlorination of Chloro‐phenols and ‐benzoic Acids by Raney Co‐Al Alloy in an Alkaline Deuterium Oxide Solution and Preparation of Deuteriated Salicylic Acids.
Authors: TASHIRO M. , TSUZUKI H. , MATSUMOTO J. , MATAKA S. , NAKAYAMA K. , TSURUTA Y. , YONEMITSU T.
Published: May 2016

The reductive dehalogenation of phenols mono‐ or polychlorinated or ‐brominated at the phenyl ring benzoic acids and salicylic acids such as (I) using Raney Co‐Al or Cu‐Al alloy in NaOD/D2O or Na2CO3/D2O leads to the corresponding deuterated compounds such as (II).
ChemInform Abstract: E‐N‐Isopropyl‐3‐tosylacrylamide: A New α‐Acylvinyl Cation Equivalent in the Synthesis of α‐Substituted Acrylamides.
Authors: NAJERA C. , MANCHENO B. , YUS M.
Published: May 2016

The β‐tosylacrylamide (I) reacts with the Grignard compounds (II) to give the α‐substituted β‐tosylpropionamides (III) which undergo base‐induced elimination to form the α‐substituted acrylamides (IV).
ChemInform Abstract: Esters of 2‐Dialkylamino‐2‐propenoic Acids.
Authors: ARNOLD Z.
Published: May 2016

Reaction of alkyl pyruvates (I) with the secondary amines (II) in the presence of arsenic trichloride yields the title compounds (III).
ChemInform Abstract: A Flexible Synthesis of Methyl 4‐Oxobutanoates and Their Derivatives.
Authors: KUNZ T. , JANOWITZ A. , REISSIG H.‐U.
Published: May 2016

The title compounds (IV) or (VIII) are prepared by ring cleavage of the methyl 2‐trimethylsiloxycyclopropanecarboxylates (III) or (VII) which are obtained either by cyclopropanation of the silyl enol ethers (I) or alkylation of the cyclopropanes (V).
ChemInform Abstract: Catalytic Oxidation of 2‐Aminomethylphenols Using the System FeCl2/Fe°/O2.
Authors: SPARFEL D. , BARANNE‐LAFONT J. , NGUYEN KIM CUONG NGUYEN KIM CUONG , CAPDEVIELLE P. , MAUMY M.
Published: May 2016

The tertiary amine (I) is more easily oxidized than the corresponding secondary amine.
ChemInform Abstract: Application of Elemento‐Organic Compounds of Groups 15 and 16 in Organic Synthesis. Part 76. A Novel Synthesis of Alkyl Aryl Sulfones via the Trialkylstibine‐Assisted Coupling of an Arenesulfonyl Chloride with Alkyl Halides.
Authors: CHEN C. , ZHU F. , HUANG Y.‐Z.
Published: May 2016

The title reaction allows the synthesis of a great variety of alkyl aryl sulfones such as (III) via coupling of tosyl chloride (I) with various alkyl halides (II).
ChemInform Abstract: A Simple Synthesis of 3‐(1‐Tetrazolyl)benzopyranoids.
Authors: LITKEI G. , PATONAY T. , PATONAY‐PELI E. , KHILYA V. P.
Published: May 2016

Cyclocondensation of the 3‐aminoflavones (I) and (V) with sodium azide (II) and triethyl orthoformate (III) produces the 3‐(1‐tetrazolyl)flavones (IV) and (VI).
ChemInform Abstract: Studies in the Synthesis of Furochromenes as Pharmacochemical Analogues of Psoralen and Allopsoralen. Part 1.
Authors: SONI R. R. , TRIVEDI K. N.
Published: May 2016

Cyclocondensation of the dihydrobenzopyrans (I) with diethyl bromomalonate (II) leads to the formation of the furochromancarboxylic acids (III) which are dehydrogenated with DCC to form the furochromenecarboxylic acids (IV).
ChemInform Abstract: Benzodipyrans of Expected Biological Activity.
Authors: HISHMAT O. H. , KHALIL K. H. M. , ABDEL GALIL F. M. , EL‐NAEM SH. I. , MAGD‐EL‐DIN A. A.
Published: May 2016

Cyclocondensation of the 6‐formyl‐7‐hydroxybenzopyran‐4‐ones (I) with cyanoacetic acid hydrazide (II), 1,1,3‐tricyano‐2‐aminoprop‐1‐ene (V), benzoylacetonitrile (VII), and malononitrile (XI) leads to the formation of the benzodipyrans (III), (VI), (VIII), (X), (XII), or (XIII).
ChemInform Abstract: Quinolizines and Indolizines. Part 16. Synthesis of Pyrrolo(3,2‐1‐ij)quinolin‐4‐ones with Potential Fungicidal Activity.
Authors: KAPPE C. O. , KAPPE T.
Published: May 2016

The title compounds (III), (IV), (V) are obtained from the readily available hydroxy heterocycle (II) by standard reactions and appropriate sequential reactions.
ChemInform Abstract: Thieno Compounds. Part 8. Preparation of 3,4‐Dihydro‐4‐oxothieno‐(2,3‐d)pyrimidin‐2‐ylacetic Acid and ‐acetic Acid Derivatives.
Authors: PECH R. , BOEHM R. +
Published: May 2016

Cyclocondensation of the 2‐amino‐3‐thiophenecarboxylates (I) with ethyl cyanoacetate (II) in the presence of gaseous hydrogen chloride leads to the formation of the oxothieno(2,3‐d)pyrimidin‐2‐ylacetates (IV) via the amidine hydrochloride (III).
ChemInform Abstract: Conversion of Di‐tert‐butyl(bis(dimethylamino)methyl)phosphine.
Authors: SHEVCHENKO I. V. , FURMANOVA M. V. , KUKHAR' V. P. , KOLODYAZHNYI O. I.
Published: May 2016

Lithium di‐tert‐butylphosphide, prepared in situ from the phosphine (I), reacts with the formamidinium chloride (II) to give the bis(dimethylamino)methylphosphine (III).
ChemInform Abstract: Synthesis and Reactivity of Dialkylaminomethylphosphonites.
Authors: PRISHCHENKO A. A. , LIVANTSOV M. V. , BOGANOVA N. V. , LUTSENKO I. F.
Published: May 2016

The butoxymethyldialkylamines (I) are coupled with dibutyl phosphonite (II) to give the aminomethylphosphonites (III).
ChemInform Abstract: Reactions of Unsaturated Compounds. Part 147. Pecularities of the Reaction of Eneallenic Phosphonates with β‐Dicarbonyl Compounds.
Authors: TIRAKYAN M. R. , DANGYAN YU. M. , CHERNEGA A. N. , ANTIPIN M. YU. , STRUCHKOV YU. T. , PANOSYAN G. A. , BADANYAN SH. O.
Published: May 2016

The vinylallenylphosphonates (I) are coupled with ethyl acetoacetate (II) in the presence of calcium oxide to give predominantly the cyclohexenylphosphonates (III) and (IV).
ChemInform Abstract: Bis(trialkylsilyl) Chalcogenides in Organic Synthesis. Part 1. Novel Synthesis of 1,3,5‐Triselenanes from Aldehydes and Novel Generation of Selenoaldehydes by Fragmentation of 1,3,5‐Triselenanes.
Authors: TAKIKAWA Y. , UWANO A. , WATANABE H. , ASANUMA M. , SHIMADA K.
Published: May 2016

Ring closure reaction of the aldehydes (I) with the disilyl selenide (II) in the presence of boron trifluoride etherate produces the symmetrical triselenanes (III).
ChemInform Abstract: Novel Intramolecularly Stabilized Organogallium and Organoindium Compounds and Their Use in MOVPE.
Authors: SCHUMANN H. , HARTMANN U. , WASSERMANN W.
Published: May 2016

The novel organoindium and organogallium compounds (III), (VII), and (IX) containing the intramolecularly stabilizing dimethyl‐ and diethylaminopropyl, or dimethylaminobutyl ligands are synthesized for use in MOVPE (Metal Organic Vapour Phase Epitaxy) and investigated by NMR spectroscopy.
ChemInform Abstract: Syntheses, Electrochemistry, and Spectroscopic and Magnetic Properties of New Mononuclear and Binuclear Complexes of Vanadium(III), ‐(IV), and ‐(V) Containing the Tridentate Macrocycle 1,4,7‐Trimethyl‐1,4,7‐triazacyclononane (L). Crystal Structures of (L2V2(acac)2(μ‐O))I2·2 H2O, (L2V2O4(μ‐O))·14 H2O, and (L2V2O2(OH)2(μ‐O))(ClO4)2.
Authors: KNOPP P. , WIEGHARDT K. , NUBER B. , WEISS J. , SHELDRICK W. S.
Published: May 2016

(I) and (III), containing the blocking macrocyclic ligand and labile ionic ligands, are useful starting materials for a variety of mono‐ and binuclear complexes of vanadium.
ChemInform Abstract: Bis(ferrocenecarbothioyl) Sulfide. Synthesis and Characterization.
Authors: KATO S. , FUKUSHIMA T. , ISHIHARA H. , MURAI T.
Published: May 2016

The title complex (III) is stable toward oxygen and water.
ChemInform Abstract: Synthesis and Electrochemistry of Pterins Coordinated to Tetraammineruthenium(II).
Authors: ABELLEIRA A. , GALANG R. D. , CLARKE M. J.
Published: May 2016

The compounds of the general type (I) are synthesized by substitution of the diaquo‐analogue with the corresponding ligands (45‐55% yield).
ChemInform Abstract: Novel Basic Ligands for the Homogeneous Catalytic Carbonylation of Methanol. Part 23. The Influence of (Ether‐Phosphane) Ligands on Alkyl Migration in Rhodium Complexes.
Authors: LINDNER E. , NORZ H.
Published: May 2016

The unstable tricarbonyl‐bis(ether‐phosphane) complexes (V) lose CO to give the four‐coordinate monocarbonyl‐Rh(I) complexes (VI).
ChemInform Abstract: Synthesis and Characterization of Rh2(O2CCH3)3((C6H2(OMe)3)2P(C6H2(OMe)2O))(MeOH) with a Novel Tridentate Ligand Derived from Tris(2,4,6‐trimethoxyphenyl)phosphine.
Authors: CHEN S. J. , DUNBAR K. R.
Published: May 2016

The title complex (III) crystallizes in P1‐ with Z=2.
ChemInform Abstract: (Malonato)bis(sulfinylbis(methane)‐S)platinum(II) Compounds: Versatile Synthons for a New General Synthesis of Antitumor Symmetrical and Dissymmetrical (Malonato)platinum(II) Complexes.
Authors: BITHA P. , MORTON G. O. , DUNNE T. S. , DELOS SANTOS E. F. , LIN Y. , BOONE S. R. , HALTIWANGER R. C. , PIERPONT C. G.
Published: May 2016

The reactions of the new (malonato)‐Pt(II) complexes (III) with various amines (trans‐1,2‐cyclohexanediamine, 2,2‐dimethyl‐1,3‐propanediamine, tetrahydro‐4H‐pyran‐4,4‐dimethanamine, cyclohexylamine, propylamine, benzylamine) lead to a new general synthesis of antitumor sym. and dissym.
ChemInform Abstract: Synthesis and Oxidation of Pregna‐3,5‐dien‐20‐ols and ‐20‐one and Selective Reduction of Pregna‐3,5‐dien‐20‐one.
Authors: GOENDOES G. + , ORR J. C.
Published: May 2016

NaBH4 reduction of progesterone (I) affords the (20S)‐ and (20R)‐alcohols (II) and (III).
ChemInform Abstract: N,N‐Diisopropyl‐bis(4‐chlorobenzyl)phosphoramidite: A Versatile Phosphitylating Agent for the Phosphorylation of Hydroxy Amino Acids and Preparation of Protected Phosphopeptides.
Authors: DE BONT H. B. A. , VAN BOOM J. H. , LISKAMP R. M. J.
Published: May 2016

The phosphorylated amino acids and peptides (III) and (IV), resp., are synthesized for structural investigations.
ChemInform Abstract: Syntheses of Undecose Derivatives as D‐Galactose Analogues for Specific Modification of Galactose‐Binding Proteins.
Authors: LEHMANN J. , SCHEURING M.
Published: May 2016

The potential photoaffinity reagent (VIII) is prepared starting from the D‐galactohexodialdopyranose (I) via twofold chain elongation and subsequent modifications of the alkyl chain.
ChemInform Abstract: Mevinic Acids and Analogs: A Novel Efficient Route to Chiral Synthons from 1,6‐Anhydro‐D‐glucose.
Authors: DAVID C. , GESSON J. P. , JACQUESY J. C.
Published: May 2016

The ditosylate (I) of levoglucosan is treated with thiophenol (II) in an alkaline medium to give the bissulfide (III) which is desulfurated, yielding the bicyclic hydroxy acetal (IV).
ChemInform Abstract: 2‐Acetylthiazole as a Three‐Carbon Homologating Reagent of Aldehydes. Application Toward the Synthesis of Amino Hexoses from L‐Serinal.
Authors: DONDONI A. , FANTIN G. , FOGAGNOLO M.
Published: May 2016

2‐Acetylthiazole (II) reacts with the aldehydes (I) to form the aldols (III) which are selectively reduced with tetramethylammonium triacetoxyboranate to give the anti‐diols (IV).
ChemInform Abstract: Silyl Nitronates in Carbohydrate Chemistry. Chain‐Extension Reactions.
Authors: MARTIN O. R. , HAMIS F. E. , EL‐SHENAWY H. A. , RAO S. P.
Published: May 2016

The aldehydo sugars (I) react with the silyl nitronate (II) to form the nitro alcohols (III).
ChemInform Abstract: Synthesis and Reactivity of Nitro Sugar‐Derived Silyl Nitronates.
Authors: MARTIN O. R. , KHAMIS F. E. , RAO S. P.
Published: May 2016

The nitromethyl sugars (I), (VI), and (VIII) are treated with the silyl chloride (II) in the presence of bases to form the silyl nitronates (III), (VII), and (IX) respectively.
ChemInform Abstract: Efficient Synthesis of 1,2‐seco and 1,2‐seco‐2‐nor Pyrimidine and Purine Nucleosides.
Authors: AZYMAH M. , CHAVIS C. , LUCAS M. , IMBACH J.‐L.
Published: May 2016

The silylated cytosine (II) is coupled with the acetoxymethylated acyclic sugar analogues (I) to form the nucleosides (III).
ChemInform Abstract: O‐Debenzylation of a Pyrrolo(2,1‐c)(1,4)benzodiazepine in the Presence of a Carbinolamine Functionality: Synthesis of DC‐81.
Authors: THURSTON D. E. , MURTY V. S. , LANGLEY D. R. , JONES G. B.
Published: May 2016

The naturally occurring antitumor antibiotic DC‐81 (VIII) is prepared from 4‐hydroxy‐3‐methoxybenzoic acid (I) in six steps.
ChemInform Abstract: A New Binary Boride, Nb5B6
Authors: BOLMGREN H. , LUNDSTROEM T. +
Published: May 2016

, is prepared by arc‐melting of a pressed mixture of the elements under argon atmosphere.
ChemInform Abstract: The Effect of Hydrogen‐Water Atmospheres on Corrosion and Flexural Strength of Sintered α‐Silicon Carbide
Authors: KIM H.‐E. , MOORHEAD A. J.
Published: May 2016

is studied for H2 atmospheres with H2O partial pressures in the range 5·10‐6‐2·10‐2 atm at 1300 and 1400 °C. The room temp. flexural strength of α‐SiC is not significantly affected by exposure to H2 atmospheres with low H2O content (P(H2O) = 5·10‐6 atm), and for high H2O contents (> 5·10‐3 atm), the strength is even higher than that of the as‐received material.
ChemInform Abstract: The Influence of Small Amounts of Added Elements on Various Anode Performance Characteristics for LaNi2.5Co2.5‐Based Alloys.
Authors: SAKAI T. , MIYAMURA H. , KURIYAMA N. , KATO A. , OGURO K. , ISHIKAWA H. , IWAKURA C.
Published: May 2016

It is found that the addition of Si to the LaNi2.5Co2.5 alloy suppresses the capacity decay, but the overpotential and self‐discharge rate are increased.
ChemInform Abstract: The Effect of Support on the Surface Characteristics of Supported Molybdena Catalysts
Authors: CACERES C. V. , FIERRO J. L. G. , LAZARO J. , LOPEZ AGUDO A. , SORIA J.
Published: May 2016

is studied for TiO2, Al2O3, SiO2, SiO2·Al2O3, and carbon supports.
ChemInform Abstract: Enhanced Polymerization of Molybdate Ions in the Presence of Antimonic Acid.
Authors: KONE M. , COURTIN P. , LEMERLE J.
Published: May 2016

Polymeric compounds containing Sb and Mo are prepared by mixing solutions of antimonic and molybdic acid, freshly prepared from potassium hexahydroxyantimonate and sodium molybdate solutions by ion exchange.
ChemInform Abstract: Synthesis of Monolithic Uranium Hydride and Uranium Deuteride.
Authors: COSTANTINO M. S. , LAKNER J. F. , BASTASZ R.
Published: May 2016

UHx (UDx) crystals are grown from the melt at temp. above 1065 °C under 125 MPa H2 (D2) pressure.
ChemInform Abstract: Crystal Structure of BaNiN, a Low Valency Nitridoniccolate(I).
Authors: GUDAT A. , HAAG S. , KNIEP R. , RABENAU A.
Published: May 2016

BaNiN is prepared by reaction of metallic Ba with dry nitrogen in a Ni crucible (1000 °C, 1 atm N2, 15 h).
ChemInform Abstract: Photoinduced Electron Transfer in Viologen‐Linked Porphyrins (p‐PCnV).
Authors: NODA S. , HOSONO H. , OKURA I. , YAMAMOTO Y. , INOUE Y.
Published: May 2016

The fluorescence decay profiles of (I) consist of a sum of two first‐order decays with longer and shorter lifetimes, the former depending hardly on n in contrast to the latter (direct quenching of the photoexcited singlet).
ChemInform Abstract: Palladium‐Catalyzed Synthesis of Aromatic Acids from Carbon Monoxide and Aromatic Compounds Via the Aromatic C‐H Bond Activation.
Authors: JINTOKU T. , FUJIWARA Y. , KAWATA I. , KAWAUCHI T. , TANIGUCHI H.
Published: May 2016

With Pd(II) catalysts the reaction is electrophilic and proceeds with ortho‐para orientation when an electron‐donating group is attached to the benzene ring (table).
ChemInform Abstract: Photoinduced Electron‐Transfer Reactions of 1,4‐Dimethyl‐ and 1,2,3,4,5,6‐Hexamethylbicyclo(2.2.0)hexanes. Evidence for Boat Cyclohexane‐1,4‐diyl Radical Cation and Its Stereospecific Cleavage.
Authors: TSUJI T. , MIURA T. , SUGIURA K. , NISHIDA S.
Published: May 2016

The sensitized photolysis of both (I) is practically acceptor (cat.)‐independent and leads to the stereospecific formation of (E,E)‐(IIa) + (IIIa) or (IIb) (exclusively, with lesser stereospecificity), respectively.
ChemInform Abstract: Photochemistry of Diarylsubstituted 2H‐Tetrazoles. Part 11. Sydnones. Part 5. Flash Photolytic Investigations with 2,5‐Diaryl‐2H‐tetrazoles and 3,4‐Diarylsydnones. Absolute Rate Constants of Cycloaddition Reactions of Diarylnitrile Imines to Dipolarophiles.
Authors: LEIHKAUF P. , LOHSE V. , CSONGAR CH. , TOMASCHEWSKI G.
Published: May 2016

Nitrile imines such as (II) are generated from 17 p‐ or p'‐monosubstituted tetrazoles such as (I) (and 7 analogous sydnones such as (III) as well) by flash photolysis and detected spectroscopically.
ChemInform Abstract: 1,3‐Dipolar Cycloadditions between Nitrile Oxides and Substituted 7‐Oxabicyclo(2.2.1)heptenes.
Authors: ARJONA O. , DOMINGUEZ C. , FERNANDEZ DE LA PRADILLA R. , MALLO A. , MANZANO C. , PLUMET J.
Published: May 2016

1,3‐Dipolar cycloaddition reaction of the aromatic nitrile oxides (II) with the 7‐oxabicyclo(2.2.1)heptenes (I) forms the corresponding exo‐adducts (III) and (IV).
ChemInform Abstract: Thermolysis of Trifluoromethylsilanes. Novel Fluoromethylsilanes by Insertion of CF2 and CHF into Si‐H Bonds.
Authors: BECKERS H. , BUERGER H. +
Published: May 2016

Thermal decomposition of CF3‐SiH3 and (CF3)2SiH2 in the gas phase are investigated in the absence and in the presence of various carbene trapping agents.
ChemInform Abstract: Applications of ENDOR Spectroscopy to Radical Cations in Freon Matrices. Part 8. Structure of the Paramagnetic Species Formed Upon γ‐Irradiation of Hexamethyl(Dewar benzene) in a CF2ClCFCl2 Matrix. An ESR and ENDOR Study.
Authors: ARNOLD A. , GERSON F.
Published: May 2016

γ‐Irradiation of (I) in CFCl3 and in CF2Cl‐CFCl2 leads to completely different ESR spectra as observed by Rhodes (1988).
ChemInform Abstract: Proton Abstraction from Dimethyl(2‐substituted‐9‐fluorenyl)sulfonium Ions. Evidence for Changes in Transition‐State Structure.
Authors: MURRAY C. J. , JENCKS W. P.
Published: May 2016

The rate and equilibrium constants of the proton removal from the title ions (I) by oxygen and nitrogen bases to give the sulfonium ylides are determined.
ChemInform Abstract: Hydride Abstraction. The Reaction of IrX(CO)(dppe) with Cp2TaH3.
Authors: DEUTSCH P. P. , MAGUIRE J. A. , JONES W. D. , EISENBERG R.
Published: May 2016

The title reaction is extremely rapid and leads to clean formation of the fac‐Ir(III) complex (III) and the halogeno‐Ta(III) compounds (IV) which in the presence of added ligands form 1:1 adducts (η5‐C5H5)2TaX(L) (L: CH2=CH2, Pr‐C=C‐Pr, CO).
ChemInform Abstract: Transition‐State Analogue Inhibitors of Chorismate Mutase.
Authors: CLARKE T. , STEWART J. D. , GANEM B.
Published: May 2016

The synthesis of seven bi‐ and tricyclic chorismate analogues (IV), (VII), (XII), (XIII) is accomplished using a tandem Cope rearrangement/Diels‐Alder cycloaddition strategy as shown in the scheme.
ChemInform Abstract: An Efficient Chiral Promoter in the Aldol Type Reaction. Chiral Diamine Coordinated Tin(II) Triflate‐Dibutyltin Diacetate Complexes.
Authors: MUKAIYAMA T. , UCHIRO H. , KOBAYASHI S.
Published: May 2016

The aldehyde (I) is coupled with the ketene O,S‐acetal (II) in the presence of tin(II) triflate, an alkyltin(IV) compound, and a chiral diamine to yield the syn‐ (III) and anti‐adduct (IV) with predominance of the former.
ChemInform Abstract: Photochemical Rearrangement of 1,2‐Dihydronaphthalenes into 1,4‐Dihydronaphthalenes Induced by Amines.
Authors: CUPPEN TH. J. H. M. , BERENDSEN N. , LAARHOVEN W. H.
Published: May 2016

The synthetic usefulness of the deprotonation/protonation reaction of excited 1,2‐dihydronaphthalenes such as (I) into 1,4‐dihydronaphthalenes such as (II) induced by amines is investigated using a total of 13 educts.
ChemInform Abstract: Substituent Effects on the Photocycloaddition Reactions of Anisoles to Acrylonitriles.
Authors: AL‐JALAL N. , GILBERT A.
Published: May 2016

The acrylonitriles (II) undergo predominantly 1,2‐photocycloaddition with 4‐cyanoanisole (I).
ChemInform Abstract: Conjugated Azoalkenes. Part 7. Reaction of Some Conjugated Azoalkenes with Activated Methinic Compounds.
Authors: ATTANASI O. A. , SANTEUSANIO S. , SERRA‐ZANETTI F.
Published: May 2016

Reaction of the azoalkenes (I) with cyclic β‐dicarbonyl compounds (II), (IV), or (VI) gives rise to the products (IIIa), (IIIb), (Va), (Vb) or (VII).
ChemInform Abstract: Studies on Organosilicon Chemistry. Part 105. α‐Oxo Ketene Dithioacetals in Organic Synthesis. A New Access to 1‐Siloxy‐1,3‐butadienes and Their Selective Reactions with Electrophiles.
Authors: TOMINAGA Y. , KAMIO C. , HOSOMI A.
Published: May 2016

The α‐oxo ketene dithioacetals (I) react with the trimethylsilylmethyl Grignard compound (II) to give the siloxybutadienes (IV) via rearrangement of the intermediates (III).
ChemInform Abstract: Cycloaddition Reaction of α‐Oxo Sulfines and 2‐Trimethylsilyloxy‐1,3‐butadienes.
Authors: REWINKEL J. B. M. , ZWANENBURG B.
Published: May 2016

Cycloaddition reactions of in situ generated α‐oxo sulfines, e.g. (III), with the silyloxydienes (II) lead regioselectively to thiacyclohexanone S‐oxides such as (IV) and (V).
ChemInform Abstract: Potential Cardiotonic Agents. Part 4. Synthesis, Cardiovascular Activity, Molecular, and Crystal Structure of 5‐Phenyl‐ and 5‐(4‐Pyridinyl)‐Substituted 2(1H)‐Pyridinethiones.
Authors: HAGEN V. , RUMLER A. , RECK G. , HAGEN A. , LABES D. , HEER S.
Published: May 2016

The butenones (I) are cyclized with cyanothioacetamide (II) to form the pyridinethiones (III).
ChemInform Abstract: Synthesis of Some Benzofuranyl Pyridine and Pyridone Derivatives with Possible Biological Activities.
Authors: HISHMAT O. H. , MIKY J. A. A. , SALEH N. M.
Published: May 2016

The condensation reaction of the benzofuran derivatives (I) with activated methylene compounds such as (II), (IV), or (VI) yields the corresponding pyridines (III), (V), and (VII) respectively.
ChemInform Abstract: Antimitotic Agents: Synthesis of Imidazo(4,5‐c)pyridin‐6‐ylcarbamates and Imidazo(4,5‐b)pyridin‐5‐ylcarbamates.
Authors: TEMPLE C. JUN.
Published: May 2016

The nitropyridine (I) is reduced and subsequently cyclized with carbon disulfide (III) to produce the imidazopyridines (IV) and (V).
ChemInform Abstract: 1,9‐Alkano‐Bridged 2,3,4,5‐Tetrahydro‐1H‐3‐benzazepines with Affinity for the α2‐Adrenoceptor and the 5‐HT1A Receptor.
Authors: CLARK R. D. , WEINHARDT K. K. , BERGER J. , FISHER L. E. , BROWN C. M. , MACKINNON A. C. , KILPATRICK A. T. , SPEDDING M.
Published: May 2016

The bicyclic acids (I) are coupled with the ethanolamine (II) and subsequently reduced to form the amines (III) which undergo ring closure upon consecutive heating with PCl5 and AlCl3 to give the benzazepines (IV).
ChemInform Abstract: Synthesis and Antiinflammatory Activity of cis‐ and trans‐6,6a,7,8,9,10,10a,11‐Octahydro‐11‐oxadibenzo(b,e)thiepinacetic and ‐oxepinacetic Acids.
Authors: KUROKAWA M. , UNO H. , NAKAMURA H. , SATO F. , NARUTO S.
Published: May 2016

The diastereomeric dibenzoxepin(dibenzothiepin)acetic acids (IV) and (V) are prepared on two synthetic routes as outlined in the reaction scheme.
ChemInform Abstract: Sulfonation of 2,6‐Dimethyl‐3,5‐dimethoxycarbonyl‐4‐(2‐difluoromethoxyphenyl)‐1,4‐dihydropyridine (Foridon).
Authors: LIEPIN'SH E. E. , SKRASTIN'SH I. P. , KASTRON V. V. , DUBUR G. YA.
Published: May 2016

Treatment of the dihydropyridine (I) with conc.
ChemInform Abstract: Stabilization of Tris(trifluoromethyl)borane in Complexes with Primary, Secondary and Tertiary Amines. Crystal and Molecular Structure of (CF3)3B·NHEt2 and (CF3)3B·NH2Et.
Authors: BRAUER D. J. , BUERGER H. + , DOERRENBACH F. + , KRUMM B. , PAWELKE G. , WEUTER W.
Published: May 2016

Nucleophilic trifluoromethylation of dichloro(amino)boranes such as (I) and subsequent protonation lead to adducts of the unknown Lewis acid B(CF3)3 with sec. amines of the type (III) ((IIIb): space group Pnma, Z=4).
ChemInform Abstract: Reaction of tert‐Butyl Tetraethyldiamidophosphite with Carbon Tetrachloride and Chloroform.
Authors: GAZIZOV T. KH. , SAL'KEEVA L. K. , CHUGUNOV YU. V.
Published: May 2016

Reaction of the phosphorodiamidite (I) with carbon tetrachloride (II) produces the phosphorodiamidic chloride (III), isobutene (IV), and chloroform (V).
ChemInform Abstract: Ambident Reactivity of Chlorophosphonium Compounds in Nucleophilic Reactions. Part 1. Reactions with Phosphorous Acid Esters.
Authors: TIMOKHIN B. V. , KAZANTSEVA M. V. , DONSKIKH V. I. , RATOVSKII G. V. , CHUVASHEV D. D.
Published: May 2016

The phosphonium salts (I) are coupled with phosphorous acid esters such as the phosphorochloridite (II) to give the phosphonous dichlorides (III) or the phosphonic dichlorides (V) depending on the polarity of the solvent used.
ChemInform Abstract: Chlorotropy in the Diade P‐C. Part 2. Chlorotropic Transformations of α‐Chloroalkylphosphonous Bis(diisopropylamides).
Authors: KOLODYAZHNYI O. I. , GOLOKHOV D. B.
Published: May 2016

Treatment of the phosphonous diamides (I) with carbon tetrachloride gives the P‐chloro ylides (II) of which (IIa) and (IIb) are transformed into the α‐chloroalkylphosphonous diamides (IIIa) and (IIIb) upon storage in toluene.
ChemInform Abstract: Synthesis and Structure of Pyrocatechol Phosphite.
Authors: NIFANT'EV E. E. , KUKHAREVA T. S. , SOLDATOVA I. A.
Published: May 2016

Coupling of pyrocatechol silyl phosphite (I) with trifluoroacetic acid gives the title compound (II) which is hydrolyzed, producing the hydroxyphenyl phosphite (III).
ChemInform Abstract: Phosphorotropic Isomerization of Oxazaphospholines.
Authors: MALENKO D. M. , NESTEROVA L. I. , LUK'YANENKO S. N. , SINITSA A. D.
Published: May 2016

The N‐acylglycines (I) react with the dichlorophosphite (II) in the presence of triethylamine to give the oxazaphospholine (IIIa) or a mixture of the isomeric oxazaphospholines (IIIb) and (IVb).
ChemInform Abstract: Ring‐Closure Reactions Initiated by the Peroxodisulfate Ion Oxidation of Diphenyl Diselenide.
Authors: TIECCO M. , TESTAFERRI L. , TINGOLI M. , BARTOLI D. , BALDUCCI R.
Published: May 2016

The oxidation of diphenyl diselenide (I) with peroxodisulfate represents an efficient method to produce phenylselenium cations in the absence of nucleophilic counterions.
ChemInform Abstract: Organoaluminum‐Phosphine Chemistry. Synthesis and Molecular Structure of (Ph2P(O)2·AlCl2)2 and (Ph2P·Al(iBu)2)2.
Authors: SANGOKOYA S. A. , PENNINGTON W. T. , ROBINSON G. H. , HRNCIR D. C.
Published: May 2016

(III) is alternatively prepared by reaction of the disproportionation product of ethylaluminum sesquichloride instead of (II).