bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis and Stereoselective Properties of the Chiral Reagent (R)‐2‐N‐(N′‐Benzylpiperidyl)aminobenzophenone.
Authors: KAZIKA A. I. , VAUCHSKII YU. P. , RYZHOV M. G. , ANODINA N. M. , ISTOMINA V. P. , KOCHETKOV K. A. , BELOKON' YU. N.
Published: May 2016

The stereoselectivity of the novel title reagent (III) in the retro‐racemization of chelates synthesized from the reagent, the amino acids alanine, valine or phenylalanine and Ni2+ or Cu2+ is examined.
ChemInform Abstract: Fused 1,8‐Naphthyridines. Part 7. Synthesis of 6H‐Indeno(1,2‐b)(1,8)naphthyridin‐6‐one.
Authors: REDDY K. R. , RAO G. R. , MOGILAIAH K. , SREENIVASULU B.
Published: May 2016

The cyanonaphthyridine (Ia) is hydrolized to give the acid (Ib) which produces the indenonaphthyridine (II) upon heating in sulfuric acid.
ChemInform Abstract: Synthesis of a New Heterocycle: cis‐4b,5,6,10b,11,12‐Hexahydro‐5,12‐diazachrysene.
Authors: PAPAGEORGIOU C. , BORER X.
Published: May 2016

Diphenylsuccinic acid (I) is cyclized in the presence of methanesulfonic acid, forming the tetrahydroindenoindenedione (II).
ChemInform Abstract: 1,4,5,6‐Tetrahydro‐1‐phenylpyridazin‐3(2H)‐one, a Homologue of Phenidone.
Authors: DOWLATSHAHI H. A.
Published: May 2016

2‐(Propionyl)phenylhydrazine (I) is N‐alkylated with 4‐bromobutyronitrile (II) to yield the hydrazide (III) which undergoes acid‐induced ring closure, forming the tetrahydropyridazinone (IV).
ChemInform Abstract: Synthesis of Naphthoxazole Derivatives by the Application of the Vilsmeier‐Haack Reaction. Part 1.
Authors: JAYANT M. R. , SESHADRI S.
Published: May 2016

Beckmann rearrangement and subsequent Vilsmeier‐Haack reaction of the oximes (I) produce the oxazolylmalondialdehydes (III) which are converted to the pyrazoles (V) by cyclocondensation with the hydrazines (IV).
ChemInform Abstract: Reactions of Diallylsulfone and Di(1‐propenyl)sulfone with Nucleophilic Reagents.
Authors: MIKHAILOVA V. N. , BULAT A. D. , EZHOVA L. A.
Published: May 2016

The reactions between diallylsulfone (I) or the isomeric di(1‐propenyl)sulfone (IV) and the amines (II) afford the 1,4‐thiazane dioxides (III) via intramolecular cyclization.
ChemInform Abstract: 1,1‐Dichloroalkylcarbodiimides. Part 3. Rearrangement of N‐Aryl‐N′‐(N′′‐alkyltrichloroacetimidoyl)carbodiimides to 1‐Aryl‐4‐trichloromethyl‐1,2‐dihydro‐1,3,5‐triazines.
Authors: MATVEEV YU. I. , GORBATENKO V. I. , SAMARAI L. I. , SEREDA S. V. , ANTIPIN M. YU. , STRUCHKOV YU. T.
Published: May 2016

The compounds (I), on reaction with the primary amines (II) afford the expected, but unstable carbodiimides (III) specified in the title.
ChemInform Abstract: A Facile Stereoselective Synthesis of Internal Conjugated E,E‐Dienes Including 2,4‐Alkadienylamines, ‐silanes, and ‐stannanes.
Authors: ISHII T. , KAWAMURA N. , MATSUBARA S. , UTIMOTO K. , KOZIMA S. , HITOMI T.
Published: May 2016

The 2,4‐alkadienyl tetrahydropyranyl ethers (VI), prepared from 1‐chloro‐2,4‐butadiene (I) and the carbonyl compounds (III) via the Grignard reagent (II) and the alcohols (IV), react selectively with the lithium compounds (VII), forming the Z,Z‐1,3‐dienes (VIII).
ChemInform Abstract: Reaction of 1,1,3,3‐Tetrakis(dimethylamino)‐1λ5,3λ5‐diphosphete with Acetonitrile.
Authors: FLUCK E. , NEUMUELLER B. + , HECKMANN G. , RIFFEL H.
Published: May 2016

The title compound (I) reacts with acetonitrile (II) to produce 3,3,5,5‐tetrakis(dimethylamino)‐3,5‐diphosphahexa‐2,4‐dienenitrile (III).
ChemInform Abstract: Kinetically and Thermodynamically Controlled Interaction of Organo‐ Silicon (‐Boron) Halides with Lithium Salts of Acylphosphines. Influence of Solvents and Electrophilic Catalysts.
Authors: LUTSENKO I. F. , FOSS V. L. , VEITS YU. A. , NEGANOVA E. G. , BORISENKO A. A.
Published: May 2016

The chlorosilanes (I) react with the lithiated acylphosphines (II) at ‐40°C in petroleum ether to yield the silylacylphosphines (III).
ChemInform Abstract: Chlorination of Phenyl Dichlorophosphite.
Authors: GLOEDE J. , GROSS H. , WASCHKE R.
Published: May 2016

Reaction of phenyl dichlorophosphite (Ia) with chlorine gives diphenoxydichlorophosphonium hexachlorophosphate (II).
ChemInform Abstract: N‐Alkyl‐N‐phosphonomethylaminomethylphosphinic Acids.
Authors: TYKA R. , HAEGELE G. + , PETERS J.
Published: May 2016

The formamides (I) are N‐hydroxymethylated and then allowed to react with the dichlorophosphanes (IV) in the presence of acids, yielding the aminomethylphosphinic acids (V).
ChemInform Abstract: Synthesis and Biological Activity of Some O,O‐Diethyl Dithiophosphates/ Thiophosphates of 3‐Substituted 5‐Mercapto‐1,2,4‐triazoles.
Authors: GOSWAMI B. N. , KATAKI J. C. S. , BARUAH J. N.
Published: May 2016

The mercaptotriazoles (I) are coupled with the chlorophosphates (II) to form the esters (III).
ChemInform Abstract: Synthesis of β‐Stannyl Esters.
Authors: GALLARDO M. T. , ZAPATA A.
Published: May 2016

The tert‐butyl acetates or propionates (I) are deprotonated and then coupled with iodomethyltributylstannane (II) to produce the α‐substituted β‐stannylpropionates (III).
ChemInform Abstract: Two Diastereomeric Forms of the Bischelated, Edge‐Sharing Bioctahedral Molecule Ta2Cl6(Et2PCH2CH2PEt2)2.
Authors: COTTON F. A. , DIEBOLD M. P. , ROTH W. J.
Published: May 2016

In research on the synthesis of Ta3Cl7(Et2PCH2CH2PEt2)3 the shown reaction leads to the isolation of two distinct crystalline forms of the complex (III) (no yield given).
ChemInform Abstract: Moessbauer and Spectroscopic Studies on Substituted Tetraphenylporphyrinato Iron(III) Complexes in Aqueous Solutions and the Formation of the μ‐Oxo‐Bridged Species.
Authors: MILLER J. R. , TAIES J. A. , SILVER J.
Published: May 2016

Electronic and 57Fe Moessbauer spectra are reported for the new title complexes of the porphyrin (Ia) and the isomers (Ib) and (Ic).
ChemInform Abstract: Synthetic Studies on Cyathins. Synthesis of the Ring System.
Authors: WARD D. E.
Published: May 2016

The tricyclic ketone (I) is converted to the alcohol (III), which undergoes base‐catalyzed epimerization to give (IV).
ChemInform Abstract: Stereospecific Hydroxylation of Chiral Allylic β‐Hydroxysulfoxides: Asymmetric Synthesis of L‐Arabinitol.
Authors: SOLLADIE G. , FRECHOU C. , HUTT J. , DEMAILLY G.
Published: May 2016

The chiral allylic β‐hydroxysulfides (I) and (IV) undergo osmylation to give the trihydroxysulfones (II), (III), (V) and (VI) with diastereoselectivities of up to 90% for the main erythro‐threo‐diastereomers (II) and (V).
ChemInform Abstract: A One‐Step Method for the Preparation of 2‐Pyridyl‐2‐deoxy‐1‐thiohexopyranosides from Glycal Esters.
Authors: MEREYALA H. B.
Published: May 2016

The tri‐O‐acetylglucal (I) reacts with the pyridinethione (II) in the presence of p‐toluenesulfonic acid to yield the isomeric pyridyl thioglycosides (III) and (IV).
ChemInform Abstract: Enantioselective Synthesis of Isoquinoline Alkaloids: Phenylethylisoquinoline and Aporphine Alkaloids.
Authors: CZARNOCKI Z. , MACLEAN D. B. , SZAREK W. A.
Published: May 2016

The chiral alkaloid precursors (III) are prepared by a new and improved procedure starting from the D‐tartaric acid derivative (I).
ChemInform Abstract: 8H‐Isoquino(2,1‐b) (2,7)naphthyridin‐8‐ones: Synthesis of the Alangium Alkaloids, Alangimaridine and Alangimarine.
Authors: JAHANGIR JAHANGIR , BROOK M. A. , MACLEAN D. B. , HOLLAND H. L.
Published: May 2016

Activation of the isoquinolines (I) toward nucleophilic attack by reaction with the sulfonate (II) followed by reaction with the lithio derivative (III) yields the tetracyclic amidines (IV), from which the lactams (Va) and (Vb) are obtained by hydrolysis.
ChemInform Abstract: Silafunctional α,β‐Epoxy Silanes: Transformation into erythro and threo 1,2‐Diol Skeletons and Its Application to the Synthesis of (.+‐.)‐exo‐Brevicomin.
Authors: TAMAO K. , NAKAJO E. , ITO Y.
Published: May 2016

The silyloxiranes (I) react selectively with organometallic compounds such as the cuprates, generated from the Grignard reagents (II) and copper cyanide, to produce 1,2‐diols such as (III).
ChemInform Abstract: Bonding in Clusters. Part 9. The closo‐nido Relationship; an MNDO Computational Study.
Authors: BRINT P. , SANGCHAKR B.
Published: May 2016

On the basis of the MNDO results, the role of the four bridging hydrogens in the cluster bonding of B5H9 is compared with that of S in SB5H5, CH‐ in (CB5H6)‐, and BH2‐ in (B6H6)2‐.
ChemInform Abstract: Investigation of the Reduction of Oxygen at a Rotating Disc Electrode with Heat Transfer Facilities.
Authors: ALWASH S. H. , ASHWORTH V. , SHIRKHANZADEH M. , THOMPSON G. E.
Published: May 2016

A nickel rotating disc electrode is used to study the oxygen reduction under isothermal conditions and with heat transfer.
ChemInform Abstract: An Integrated Study of Pt/WO3/SiO2 Catalysts for the NO‐CO Reaction. Part 2. TEM Investigation of Overlayer Formation on Model Pt‐WO3/SiO2 Catalysts.
Authors: REGALBUTO J. R. , ALLEN C. W. , WOLF E. E.
Published: May 2016

Model Pt‐WO3/SiO2 catalysts are prepared by impregnation of a silica covered TEM grid using the same pretreatment steps as those used for real catalysts: impregnation with ammonium metatungstate; vacuum dry, 80 °C; calcination in air, 700 °C; reimpregnation with chloroplatinic acid; vacuum dry, 80 °C; calcination in air, 300 °C; H2 reduction at 400 °C and the same catalyst regions are analyzed during all pretreatment steps.
ChemInform Abstract: Reaction Between Graphite and Gaseous BrF5.
Authors: DANILENKO A. M. , NAZAROV A. S. , YAKOVLEV I. I.
Published: May 2016

Treatment of graphite with BrF5 affords the novel intercalation compound C9.7F4.2·BrF5 (I).
ChemInform Abstract: Hydrothermal Synthesis and X‐Ray Crystallographic Analysis of Lanthanum and Praseodymium Fluoroantimonates.
Authors: GUKALOVA A. G. , MEL'NIKOVA E. B. , TSEITLIN M. N.
Published: May 2016

High‐temperature reactions in the aqueous systems La2O3‐Sb2O3‐KF‐H2O2‐H2O or Pr6O11‐Sb2O3‐KF‐H2O afford the hitherto unknown monocrystalline phases of the compounds Ln2SbO5F (Ln: La, Pr).
ChemInform Abstract: Low Temperatures Favor Kinetic 1,4‐ over 1,2‐Addition of Organolithiums to α‐Enones. The Crucial Role of Ion Pairing.
Authors: COHEN T. , ABRAHAM W. D. , MYERS M.
Published: May 2016

A straightfoward and theoretically satisfying model is presented and discussed to explain and predict the effects of reaction conditions and organolithium structure in promoting the kinetic 1,2‐ or 1,4‐addition to enones such as (I) or (VI).
ChemInform Abstract: Stabilization of Positive Charge by β Silicon.
Authors: LAMBERT J. B. , WANG G. , FINZEL R. B. , TERAMURA D. H.
Published: May 2016

The effects of the leaving group X‐CO‐O‐, the stabilization of the remaining positive charge by SiMe3 and its stereo position, and the substituent R on the rates of elimination of X‐CO‐O‐SiMe3 from (I) to form (II) are studied in detail.
ChemInform Abstract: A Stereoselective, Palladium‐Catalyzed Route to 4‐Oxygenated 5‐Alkylidenecyclopentenones and 3‐Oxygenated 2‐Alkylideneindanones.
Authors: LIEBESKIND L. S. , MITCHELL D. , FOSTER B. S.
Published: May 2016

The highly stereoselective Pd‐catalyzed ring expansion reactions of the 4‐alkynyl‐4‐hydroxy‐cyclobutene systems (I), (VI), and (VIII) provide rapid access to the highly functionalized title compounds (II), (VII) (no yield given), or (IX).
ChemInform Abstract: Photochemical (2 + 2) Cycloadditions. Part 2. Photochemical Addition of 3‐Butyl‐2‐cyclopentenone to Some ω‐Bromo‐1‐alkenes.
Authors: SYDNES L. K. , MELING H. L.
Published: May 2016

The title reaction yields a mixture of products (IV)‐(VII), whose structures are elucidated mainly by MS and 13C NMR data.
ChemInform Abstract: Surface Photochemistry: The CdS‐Mediated Reaction of 1,1‐Di‐p‐anisylethylene.
Authors: AL‐EKABI H. , DE MAYO P.
Published: May 2016

Irradiation of 1,1‐di‐p‐anisylethylene (I) in the presence of cadmium sulfide yields the products (II) ‐ (VII) derived from the radical cation of (I).
ChemInform Abstract: Evidence for Equilibrating “Structures” in Unsymmetrical Tertiary 2‐Adamantyl Cations. Possible Pyramidal Distortion of Observable Solution Carbocations.
Authors: FINNE E. S. , GUNN J. R. , SORENSEN T. S.
Published: May 2016

From 13C NMR data recorded over a wide range of temp. and in several different solvents such as FSO3H/SbF5 it is shown that both cations (Ia) and (Ib) exist as a pair of rapidly equilibrating "structures".
ChemInform Abstract: Asymmetric Hydrogenation of Trisubstituted Acrylic Acids Catalyzed by a Chiral (Aminoalkyl)ferrocenylphosphine‐Rhodium Complex.
Authors: HAYASHI T. , KAWAMURA N. , ITO Y.
Published: May 2016

The hydrogenation of trisubstituted acrylic acids (I) is efficiently and highly stereoselectively promoted by a rhodium catalyst system prepared in situ containing a chiral (aminoalkyl)‐ferrocenylphosphine ligand species (denoted in the scheme as, e.g., cat1) leading to the products (II).
ChemInform Abstract: Hydroformylation of Fluoro Olefins, RfCH=CH2, Catalyzed by Group VIII Transition‐Metal Catalysts. Crucial Factors for Extremely High Regioselectivity.
Authors: OJIMA I. , KATO K. , OKABE M. , FUCHIKAMI T.
Published: May 2016

Hydroformylation of the olefins (I) promoted by various transition metal catalysts A)‐E) are studied.
ChemInform Abstract: Catalysis by Palladium Salts. Part 2. Palladium‐Catalyzed Carboxylation with Carbon Monoxide of Aromatic Compounds Working Under Mild Conditions.
Authors: UGO R. , CHIESA A.
Published: May 2016

The carboxylation of aromatic C‐H bonds (for example, benzene, toluene, anisole, naphthalene) with CO, catalyzed by (Pd3(O‐Ac)6), occurs with good yields and under mild conditions (1 atm.
ChemInform Abstract: Allyl Sulfide Synthesis of Phenylthio Migration: Relationship Between Stereochemistry of Starting Materials and Regioselectivity of Double Bond Formation.
Authors: AGGARWAL V. K. , WARREN S.
Published: May 2016

Reduction of the phenylthio ketone (I) affords the syn‐ and anti‐phenylthio alcohols (II) and (III).
ChemInform Abstract: Furannulation via Radical Cyclization.
Authors: SRIKRISHNA A. , PULLAIAH K. C.
Published: May 2016

The vinyl ethers (I) react with propargyl alcohol (II) and NBS to yield the bromoalkylpropargyl ethers (III) which are cyclized to give the 3‐methyl furans (V) via the intermediates (IV).
ChemInform Abstract: Novel Synthesis of Heteroaromatic Containing Electroactive Polyaromatics of Known Linkages, Order, Topicity, and Stoichiometry.
Authors: PELTER A. , ROWLANDS M. , JENKINS I. H.
Published: May 2016

Pd‐catalyzed coupling of the hetarylzinc chlorides (I) with 1,4‐dibromobenzene (II) gives the 1,4‐dihetarylbenzenes (III) which are converted to the dizinc derivatives (IV).
ChemInform Abstract: Photochemistry of Heterocycles. Part 20. Preparation and Photochemistry of 3‐Methoxycarbonyl Substituted Condensed Isoxazolines.
Authors: OREMUS V. , FISERA L. , TIMPE H.‐J.
Published: May 2016

The reaction between 2,5‐dihydrofuran (I) and the nitrile oxide (II) yields the bicyclic isoxazoline (III).
ChemInform Abstract: A Convenient Synthesis of 3,5‐Disubstituted 1,2,4‐Triazoles.
Authors: FRANCIS J. E. , GORCZYCA L. A. , MAZZENGA G. C. , MECKLER H.
Published: May 2016

Cyclocondensation of the hydrazides (II) with the amidines (I) produces the 1,2,4‐triazoles (IV).
ChemInform Abstract: The Synthesis of an Oxa Analogue of Helminthosporic Acid.
Authors: DREW M. G. B. , MANN J. , HOLLAND H. J. , LEWIS T.
Published: May 2016

The syntheses of the β‐lactam (VIII) and its derived amino acid (IX) as an oxa analogue of the title compound (X) from the known bicyclic (I) are described.
ChemInform Abstract: Improved Synthesis of Substituted Oxetanes, Tetrahydrofurans, and Tetrahydropyrans from ω‐Chlorinated Carboxylic Acid Chlorides.
Authors: BARLUENGA J. , RUBIERA C. , FERNANDEZ J. R. , FLOREZ J. , YUS M.
Published: May 2016

Reaction of the chlorides (II), (V) or (VII) with 2 molequiv.
ChemInform Abstract: Oxygen Transfer from Nicotinic Acid N‐Oxide to Pyridine.
Authors: RYZHAKOV A. V. , ELAEV N. R.
Published: May 2016

Quantitative oxygen transfer from nicotinic acid N‐oxide (I) to pyridine (II) takes place during thermal treatment of (I) with 3 mol (II).
ChemInform Abstract: Reduction of Enamines in the 3,3‐Dialkyl‐3,4‐dihydroisoquinoline Series.
Authors: GAVRILOV M. S. , SHKLYAEV V. S. , ALEKSANDROV B. B.
Published: May 2016

Reduction of the enamine (Ia) with lithium aluminum hydride gives the tetrahydroisoquinolylpropanol (II).
ChemInform Abstract: β‐Lactam Annulation using (Phenylthio)nitromethane.
Authors: BARRETT A. G. M. , GRABOSKI G. G. , SABAT M. , TAYLOR S. J.
Published: May 2016

The N‐silylated β‐lactam aldehydes (I) react with (phenylthio)nitromethane (II) to form the aldol adducts (III) which are dehydrated, yielding the nitroalkenes (IV).
ChemInform Abstract: 1,3‐Nitrogen Shift Reaction in Sulfur‐Nitrogen Chemistry. Preparation and Interconversion of exo‐ and endo‐Trithiatetrazocines.
Authors: BOERE R. T. , CORDES A. W. , OAKLEY R. T.
Published: May 2016

The mechanism of the formation of the endo products (III) from the 1,3‐NSN‐bridged dithiatriazine (I) and phosphines (IIa)‐(IIc) or triphenylarsine (IId) is studied by 31P and 15N NMR spectroscopy.
ChemInform Abstract: Synthesis and Antihypertensive Activities of 1,4‐Dihydropyridine‐5‐ phosphonate Derivatives. Part 1.
Authors: MORITA I. , TADA S. , KUNIMOTO K. , TSUDA M. , KISE M. , KIMURA K.
Published: May 2016

Arbuzov reaction of the phosphites (II) with bromoacetone (I) gives the acetonylphosphonates (III).
ChemInform Abstract: Synthetic Methods. Part 27. Phenylselenium Azide Addition to Alkenes. A New and Stereospecific Introduction of Se and N into Organic Molecules.
Authors: HASSNER A. , AMARASEKARA A. S.
Published: May 2016

Phenylselenenyl azide, generated from phenylselenenyl chloride (II) and sodium azide (III), reacts with the olefinic compounds (I), (VI), and (IX) to form the trans‐adducts (IV) or (V), (VII) and (VIII), or (X).
ChemInform Abstract: Isolation, and Partial Characterization by XPS, of Two Distinct Catalysts in the Ziegler‐Natta Polymerization of Ethylene.
Authors: GASSMAN P. G. , CALLSTROM M. R.
Published: May 2016

Treatment of the zirconocenes (I) with methylaluminoxanes in toluene gives solutions of catalyst in which the compounds (I) are all converted into new Zr derivatives which have the same Zr(IV) binding energy.
ChemInform Abstract: Synthesis and Reactivity of Bis(trimethysilylcyclopentadienyl)niobium Compounds with Cumulene Ligands.
Authors: ANTINOLO A. , GARCIA‐LIEDO S. , MARTINEZ DE ILARDUYA J. , OTERO A.
Published: May 2016

Reduction of the dicyclopentadienyl Nb(II) complex (I) with sodium amalgam yields the corresponding Nb(I) compound (II).
ChemInform Abstract: Hexaisopropoxyditungsten and Dodecaisopropoxytetratungsten: W2(O‐iPr)6 and W4(O‐iPr)12. Part 1. Preparation, Structure, and Bonding. The First Example of a Metal‐Metal Triple Bond and Its 12‐Electron Cluster. Analogies with Ethyne and Cyclobutadiene.
Authors: CHISHOLM M. H. , CLARK D. L. , FOLTING K. , HUFFMAN J. C. , HAMPDEN‐SMITH M. J.
Published: May 2016

The preparation of (III), its dimer (V) and of a 1:1 mixture is described.
ChemInform Abstract: Chemistry of Organo‐Transition Metal Compounds. Part 51. Preparation and Characterization of the Organomanganese(III) Compound Na(Mn(C5H5)4).
Authors: TEMBE G. L. , JACOB K. , BRUESER W. + , SCHULZ D. , THIELE K.‐H.
Published: May 2016

The red‐violet diamagnetic title compound is obtained when Mn tris(acetoacetonate) is allowed to react with C5H5Na in THF (yield 34%).
ChemInform Abstract: Synthesis of Vinylcyclopropanes via Palladium‐Catalyzed Coupling of Cyclopropylzinc Halides with Vinyl Iodides. Total Syntheses of (.+‐.)‐Prezizanol and (.+‐.)‐Prezizaene.
Authors: PIERS E. , JEAN M. , MARRS P. S.
Published: May 2016

The key step in the synthesis of the sesquiterpenes (V) is the coupling of the fused cyclopropyl chloride (II) with the vinylic iodide (III) in the presence of a Pd catalyst via lithiation of (II) and formation of the corresponding organozinc chloride.
ChemInform Abstract: Steroids. Part 22. Photochemistry of 5,6‐Epoxy‐4,4‐dimethylcholestan‐3‐ones and 5,6‐Epoxy‐17‐hydroxy‐4,4‐dimethylestran‐3‐ones.
Authors: FOSTER R. W. G. , IMAM S. H. , MARPLES B. A. , STUBBINGS G. W. F.
Published: May 2016

The epoxyketones (I) photolyze essentially as the equivalent ketones, e.g. (VII) (→ (X) + (XI)), in methanol (IV) in that little evidence of epoxide cleavage is detected and the major products are the seco‐esters (II) or (X).
ChemInform Abstract: Incorporation of D‐Amino Acids into Peptides via Enzymatic Condensation in Organic Solvents.
Authors: MARGOLIN A. L. , TAI D.‐F. , KLIBANOV A. M.
Published: May 2016

The synthesis of the peptides (III) containing D‐amino acids by the protease subtilisin from the components (I) and (II) is studied.
ChemInform Abstract: Synthesis and HPLC Purification of the Renin Substrate Tetradecapeptide.
Authors: TOTH G. K. , PENKE B. , NAGY J. , SZAJANI B. , ZSIGO J. , ZARANDI M. , KOVACS K.
Published: May 2016

The title peptide (I) is prepared by solid‐phase synthesis using a Merrifield resin.
ChemInform Abstract: Expeditious Enantioselective Syntheses of Indole Alkaloids of Aspidosperma‐ and Hunteria‐Type.
Authors: NODE M. , NAGASAWA H. , FUJI K.
Published: May 2016

The nitro olefin (I) serves as suitable starting material for a short and efficient chiral synthesis of the alkaloids (+)‐quebrachamine (VII), (‐)‐aspidospermidine (XII) and (‐)‐eburnamonine (XIII).
ChemInform Abstract: An Efficient Enantioselective Synthesis of the Carbapenam‐2‐one System. An Approach to (+)‐Thienamycin and Related Carbapenems.
Authors: MEYERS A. I. , SOWIN T. J. , SCHOLZ S. , UEDA Y.
Published: May 2016

The 4‐acetoxyazetidinone (I) is coupled with the diene (II) in the presence of ZnCl2 to give the cycloadduct (III) which is hydrolyzed with fluoride ions to give the ketone (IV).
ChemInform Abstract: Structures, Energies, and Vibrational Frequencies of Intermediates and Transition States in the Reaction of NH2 and NO.
Authors: HARRISON J. A. , MACLAGAN R. G. A. R. , WHYTE A. R.
Published: May 2016

The optimized geometries for reactants, intermediates, transition states, and possible products for the NH2/NO reaction are obtained at the HF/6‐31G* level.
ChemInform Abstract: Mechanism of the Reaction of Nitric Oxide, Ammonia, and Oxygen over Vanadia Catalysts. Part 2. Isotopic Transient Studies with Oxygen‐18 and Nitrogen‐15.
Authors: JANSSEN F. J. J. G. , VAN DEN KERKHOF F. M. G. , BOSCH H. , ROSS J. R. H.
Published: May 2016

The mechanism of NO reduction with 15NH3 or 14NH3 in the presence of 16O2 or 18O2 is studied over the following catalysts: unsupported V2O5, V2O5/TiO2, V2O5/Al2O3, and V2O5/SiO2‐Al2O3.
ChemInform Abstract: Heterogeneous Photocatalysis. Part 5. Cadmium Zinc Sulfides as Catalysts for Photodehydrodimerization of 2,5‐Dihydrofuran.
Authors: HETTERICH W. , KISCH H.
Published: May 2016

Irradiation (λ ≥ 290 nm) of platinized CdS or its homogeneous solid solutions with ZnS (Zn0.2Cd0.8S, Zn0.1Cd0.9S) suspended in aqueous solutions of 2,5‐dihydrofuran leads to the formation of H2 and dehydrodimers of the cyclic ether (2,2'‐, 2,3'‐, 3,3'‐C‐C bonding).
ChemInform Abstract: Synthesis and Characterization of Hetero‐Bimetallic Sulfonate Bridged Coordination Polymers of the Type M(II)Sn(IV)(SO3X)6 with X: F of CF3.
Authors: MALLELA S. P. , LEE K. , GEHRS P. F. , CHRISTENSEN J. I. , SAMS J. R. , AUBKE F.
Published: May 2016

The new title compounds are prepared according to the scheme and characterized by IR and 199Sn Moessbauer spectra.
ChemInform Abstract: Binding of Pentaammineruthenium(II) Residues to the Tris(bipyrazine)ruthenium(II) Cation.
Authors: TOMA H. E. , AUBURN P. R. , DODSWORTH E. S. , GOLOVIN M. N. , LEVER A. B. P.
Published: May 2016

The complexes (III) and (IV) are prepared from the ligand bipyrazine and (II) or from (I) and (II), respectively, in boiling acetone using appropriate amounts of (II) (no yields given).
ChemInform Abstract: Triazene Drug Metabolites. Part 6. The Interaction of N‐Hydroxymethyltriazenes with Lanthanoid‐Induced Shift Reagents
Authors: CHENG S. C. , ILEY J.
Published: May 2016

(formation of 1:1 complexes of (I) with Pr(thd)3 (thd: 2,2,6,6‐tetramethyl‐3,5‐heptanedionato) and Eu(fod)3 (fod: 1,1,1,2,2,3,3‐heptafluoro‐7,7‐dimethyl‐4,6‐octanedionato), the binding occurring through the hydroxyl oxygen atom.
ChemInform Abstract: Interaction of Thiophene S,N‐Ylides with Dimethyl Acetylenedicarboxylate.
Authors: DILLEN J. L. M. , METH‐COHN O. , VAN VURREN G.
Published: May 2016

The reaction of the ylide (I) with the diester (V) yields the products (II) and (III).
ChemInform Abstract: Intramolecular Cyclization with Nitrenium Ions Generated from N‐Chloro‐ N‐methoxyamides in Neutral Conditions.
Authors: KIKUGAWA Y. , SHIMADA M.
Published: May 2016

The cyclization reaction of the N‐methoxyamides (I) is investigated, producing the heterocycles (II).
ChemInform Abstract: Reactions of Polyfluoro‐β‐ketocarboxylic Acid Esters and Their α‐Halogen Derivatives with Phosphorus Pentachloride.
Authors: BOBROV M. B. , SALOUTIN V. I. , RUDAYA M. N. , PASHKEVICH K. I.
Published: May 2016

Treatment of the fluoroketocarboxylic acid esters (I) with equimolecular amounts of PCl5 gives the α,β‐unsaturated esters (II).
ChemInform Abstract: Reagents and Synthetic Methods. Part 66. Reduction of α,β‐Unsaturated Nitro Compounds with Tributyltin Hydride.
Authors: AIZPURUA J. M. , OIARBIDE M. , PALOMO C.
Published: May 2016

Reduction of the nitro olefins (I) with tributyltin hydride (II) via the intermediate O‐stannyl nitronates (III) yields the saturated nitro alkanes (IV).
ChemInform Abstract: Esters of Xanthic and Dithiocarbamic Acids as Admixtures to Lubricant Oils.
Authors: KULIEV A. M. , GASYMOVA G. A. , YUSIFOV CH. A. , KULIEVA M. A. , ALIEV F. YU.
Published: May 2016

The title compounds (III), (V), (VII) and (VIII) are prepared.
ChemInform Abstract: Rearrangement of N‐(p‐Toluenesulfonyloxy)‐2‐pyrrolidinone.
Authors: BISWAS A. , MILLER M. J.
Published: May 2016

Acylation of O‐benzylhydroxylamine (II) with the acid chloride (Ia) followed by ring closure reaction gives N‐benzyloxy‐2‐pyrrolidinone (IIIa).
ChemInform Abstract: New Features of the Intramolecular Diels‐Alder Route to Hydroisoindoles.
Authors: MELLOR J. M. , WAGLAND A. M.
Published: May 2016

Diels‐Alder reactions of the aminodienes (I) with dienophiles such as (V) or (VIII) proceed stereoselectively to yield the isoindole derivatives (VI), (VII), or (IX).
ChemInform Abstract: A New Facile Synthesis of 5‐Alkyl‐2‐aryl‐3H‐pyrazol‐3‐ones.
Authors: CHEN B.‐C. , HUANG X. , MA S.‐M.
Published: May 2016

The methylthioalkylidene Meldrum's acids (I) are used as synthons for β‐keto esters.
ChemInform Abstract: Asymmetric Induction in Addition of N‐Nitrenes to Alkenes: 2‐(Chiral)‐substituted Benzimidazole‐derived N‐Nitrene Additions to Alkenes.
Authors: ATKINSON R. S. , TUGHAN G.
Published: May 2016

Oxidation of optically active aminobenzimidazoles such as (Ia) with Pb(O‐Ac)4 in the presence of various prochiral alkenes such as (II) yields mixtures of the diastereomeric aziridines such as (III) with little asym.
ChemInform Abstract: Synthesis of 1‐Methyl‐2‐(2‐oxazolyl)‐5‐nitroimidazole.
Authors: SHAFIEE A. , EBRAHIMI‐BIBALAN T. , BAKHSHI‐DEZFOULI M. E. , GHANBARPOUR A.
Published: May 2016

Attempted ring closure reaction of the imino acetal (III) or the carboxamide (Ic) does not yield the methyl(oxazolyl)nitroimidazole (IV).
ChemInform Abstract: Synthesis and Functionalization of Chloro‐Substituted Bicyclo‐ and 8‐Oxabicyclo(3.2.1)octa‐2,6‐dien‐4‐ones.
Authors: SEITZ G. , VAN GEMMERN R.
Published: May 2016

The bicyclic tetrachlorodienes (I) are hydrolyzed in TFA to yield the dichloroenones (II) which react with the silylamines (III), producing the vinylogous amides (IV).
ChemInform Abstract: Studies on Rutaceae. Part 7. An Interesting Rearrangement of the Rare Epoxycoumarin, Micromelumin, to the Linear Furanocoumarin, Psoralen.
Authors: BANERJI J. , DAS A. K. , DAS B.
Published: May 2016

Micromelumin (I) gives a mixture of psoralen (II) and the methoxycoumarinyltetronic acid (III) on treatment with boron trifluoride etherate.
ChemInform Abstract: The Regioselectivity of Amination of Certain 4‐Dimethylaminopyridines.
Authors: GROZIAK M. P. , MELCHER L. M.
Published: May 2016

Bromination of 4‐dimethylaminopyridine (I) gives 3‐bromo‐4‐dimethylaminopyridine (II) which undergoes Chichibabin reaction to give 2‐amino‐5‐ bromo‐4‐dimethylaminopyridine (IV) as a by‐product.
ChemInform Abstract: Asymmetric Induction in Addition of N‐Nitrenes to Alkenes: Oxidation of 3‐Amino‐2‐(1,2,2‐trimethylpropyl)quinazolin‐4(3H)‐one in the Presence of α‐Methylene‐γ‐butyrolactone: Conformational Analysis of the Aziridines Formed and Comparison with Alkanoylated Cyclopropylamines.
Authors: ATKINSON R. S. , TUGHAN G.
Published: May 2016

Oxidation of the title N‐aminoquinazoline (IVa) (available from the compounds (I) and (IIa) via the intermediate (IIIa)) in the presence of the lactone (V) yields the spiroaziridines (VIa) + (VIIa) with virtually no asym.
ChemInform Abstract: A Novel Method for the Synthesis of 4‐Nitrodibenzo‐14‐crown‐4.
Authors: CHEN C.‐S. , CHAO H.‐E. , WANG S.‐J.
Published: May 2016

The synthesis of the crown ether (III) mentioned in the title is optimized.
ChemInform Abstract: 1,3 Silicon to Silicon Migration of the Methoxy Group in Solvolysis of (Bromodiphenylsilyl)(methoxydimethylsilyl)bis(trimethylsilyl)methane. Crystal Structures of (Ethoxydimethylsilyl)(methoxydiphenylsilyl)bis(trimethylsilyl)methane and (Methoxydimethylsilyl)(methoxydiphenylsilyl)bis(trimethylsilyl)methane.
Authors: BUTTRUS N. H. , EABORN C. , HITCHCOCK P. B. , LICKISS P. D. , NAJIM S. T.
Published: May 2016

The sole product obtained by the solvolysis of (I) with the alcohols (IIa) and (IIb) or aqueous acetone is judged to be the rearranged dialkoxysilane (IIIa) or (IIIb).
ChemInform Abstract: Novel Heterocyclic Systems. Part 28. Preparation and Characterization of the 1,6‐, 1,7‐, 1,8‐, and 1,9‐Diazaphenoxaselenines: An Unexpected Divergence Between Closely Related Sulfur and Selenium Systems.
Authors: SMITH K. , MATTHEWS I. , MARTIN G. E.
Published: May 2016

Whereas the reaction between the dianion of the thione (I) and the pyridine (III) proceeds regiospecifically to afford 1,9‐diazaphenoxathiine, the reaction between the dianion of the selone (II) and (III) yields a mixture of the expected (V) and its 1,6‐isomer (IV) the latter being the major product.
ChemInform Abstract: New Adamantane‐Like Mercury‐Chalcogen Cages. Synthetic and Multinuclear (31P, 77Se, 199Hg) NMR Study of ((μ‐ER)6(HgL)4)2+ (E: S or Se; L: Tertiary Phosphine or Arsine) and Related Species with Mixed Ligands.
Authors: DEAN P. A. W. , VITTAL J. J. , TRATTNER M. H.
Published: May 2016

The reaction between the Hg(II) compounds (I) and (II) and ligand L (III) in a 1:3:2 ratio produces the isolable salts (IV).
ChemInform Abstract: Synthesis, Electrochemistry, and Ligand‐Addition Reactions of Gallium(III) Porphyrins.
Authors: KADISH K. M. , CORNILLON J.‐L. , COUTSOLELOS A. , GUILARD R.
Published: May 2016

The free macrocyclic bases react with GaCl3 in acetic acid containing Na acetate to give (Ia).
ChemInform Abstract: Bimetallic Lanthanoid Complexes of the Calixarenes: Europium(III) and tert‐Butylcalix(8)arene.
Authors: FURPHY B. M. , HARROWFIELD J. M. , KEPERT D. L. , SKELTON B. W. , WHITE A. H. , WILNER F. R.
Published: May 2016

The reaction of (I) with the macrocyclic title octaphenol (II) yields the complex (III) which is characterized by an X‐ray structure analysis (space group P1, Z=2).
ChemInform Abstract: Reactions of Diazo Compounds with the Electron‐Rich Germylene Ge(N(SiMe3)2)2. Characterization and Some Addition Reactions of ((Me3Si)2N)2GeNNC(COOMe)2: Crystal and Molecular Structure of ((Me3Si)2N)2Ge(NHN=C(COOMe)2) (C(N2)COPh).
Authors: GLIDEWELL C. , LLOYD D. , LUMBARD K. W. , MCKECHNIE J. S. , HURSTHOUSE M. B. , SHORT R. L.
Published: May 2016

Two forms of the stable germyleneazine (III) formed by addition of the diazo‐compound (II) to the electron‐rich germylene (I) are characterized in solution by 1H and 13C NMR spectroscopy.
ChemInform Abstract: Phosphorus Versus Nitrogen Donor Ligands in Edge‐Sharing Bioctahedra of Niobium and Tantalum M2Cl6(L‐L)2 Complexes.
Authors: CANICH J. A. M. , COTTON F. A.
Published: May 2016

The title complexes (I) are prepared by a ligand displacement reaction on M2Cl6(SMe2)3 with N,N,N',N'‐tetraethylenediamine or 1,2‐bis(diethylphosphino)ethane.
ChemInform Abstract: Reactions of (WI2(CO)(NCMe)(η2‐RC2R)2) (R: Me or Ph) with NCPh to Give the Acetonitrile Substituted Products (WI2(CO)(NCPh)(η2‐RC2R)2).
Authors: ARMSTRONG E. M. , BAKER P. K.
Published: May 2016

The title complexes (III) are obtained according to the scheme.
ChemInform Abstract: Manganese(I) Complexes with (Tricyclohexylphosphonio)dithiocarboxylate as Chelate and Unidentate Ligand. X‐Ray Crystal Structure of fac‐(Mn(CO)3(S2CP(C6H11)3)2)ClO4·H2O.
Authors: MIGUEL D. , RIERA V. , MIGUEL J. A. , BOIS C. , PHILOCHE‐LEVISALLES M. , JEANNIN Y.
Published: May 2016

The preparation of Mn complexes containing differently bonded types of the title ligand (II) is described.
ChemInform Abstract: Preparation and Structure of Nickel(II) Complexes of N‐Substituted Tetraaza Macrocycles: Molecular Structure of ((1RS,4SR,5RS,8SR,11RS,12SR)‐1,5,8,12‐Tetramethyl‐1,4,8,11‐tetraazacyclotetradecane)nickel(II) Diperchlorate.
Authors: MIYAMURA K. , KOHZUKI M. , NARUSHIMA R. , SABURI M. , GOHSHI Y. , TSUBOYAMA S. , TSUBOYAMA K. , SAKURAI T.
Published: May 2016

The reaction of ice‐cooled N‐methyl‐1,2‐diaminoethane monohydroperchlorate in MeOH and but‐3‐ene‐2‐one in the presence of aqueous HClO4 (60%) gives the macrocyle (I) (as its di‐hydroperchlorate) which is complexed by Ni or Cu acetate to give (III) isolated as the perchlorates.
ChemInform Abstract: Promoted Hydrolysis of Nitriles Using Hydrogen Peroxide: The Isolation and the Characterization of a Paramagnetic Nickel(II)‐peroxoacetimido Derivative.
Authors: CANESCHI A. , DEI A.
Published: May 2016

The paramagnetic, crystalline peroxoacetimido‐Ni compound (I) is formed as its monohydrate when a solution of the Ni(II) perchlorate complex of DL‐5,7,7,12,14,14‐hexamethyl‐1,4,8,11‐tetraazacyclotetradecane (α‐form) in MeCN is mixed with an aqueous solution of H2O2 at room temp. and pH 12,5‐13 (NaOH).
ChemInform Abstract: Preparation, Isomerization, and Reactions of Hydride Complexes of Ruthenium(II).
Authors: BRAY J. M. , MAWBY R. J.
Published: May 2016

The dihydride complexes and their deuteride analogues (II) are obtained according to the scheme.
ChemInform Abstract: Di‐ and Trinuclear Di‐tert‐butylphosphido‐Bridged Complexes of Palladium. Synthesis and X‐Ray Structures of (Pd(μ‐tBu2P)(PMe3))2(Pd‐Pd) and Mixed‐Valence Pd3(μ‐tBu2P)3(CO)2Cl.
Authors: ARIF A. M. , HEATON D. E. , JONES R. A. , NUNN C. M.
Published: May 2016

Reaction of the Pd complex (I) with the lithium phosphide (II) produces a mixture of compounds from which the trinuclear phosphido‐bridged complex (III) can be isolated in low yield.
ChemInform Abstract: Preparation of Two Mixed‐Metal Carbonyl Clusters Based on the Platinumtriosmium Core. X‐Ray Crystal Structure of (Os3PtH2(cod)(CH2)(CO)9) (cod = Cycloocta‐1,5‐diene).
Authors: NOREN B. , SUNDBERG P.
Published: May 2016

By refluxing the complexes (I) and (II) in toluene the two saturated platinumtriosmium clusters (IIIa) and (IIIb) are obtained.
ChemInform Abstract: Preparation of Compounds with Halogenoimidoyl Groups
Authors: PETROVA T. D. , PLATONOV V. E.
Published: May 2016

Review: (239 refs.
ChemInform Abstract: Pyrido(2,3‐d)pyrimidines
Authors: OGANISYAN A. SH. , NORAVYAN A. S. , VARTANYAN S. A.
Published: May 2016

Review: (270 refs.
ChemInform Abstract: Platinum Film Electrodes. Part 1. Platinum Film on Ti or TiO2 Covered Ti.
Authors: WANG C.‐R. , HSEU T.‐M. , LIN Z.‐F.
Published: May 2016

Pt‐film electrodes, obtained by conventional electroplating (ELP) and by electroless plating (ELSP) can be used as active electrodes for alkaline (1M NaOH) water electrolysis.
ChemInform Abstract: Binding Sites of Pyrene and Related Compounds and Chiral Excimer Formation in the Cavities of Cyclodextrins and Branched Cyclodextrins.
Authors: KANO K. , MATSUMOTO H. , YOSHIMURA Y. , HASHIMOTO S.
Published: May 2016

Pyrene itself and the intermolecular dimeric pyrene (S chirality) are bound to the prim. OH side of β‐ or γ‐cyclodextrin, respectively.
ChemInform Abstract: Asymmetric Hetero‐Diels‐Alder Reaction Catalyzed by Chiral Organoaluminum Reagent.
Authors: MARUOKA K. , ITOH T. , SHIRASAKA T. , YAMAMOTO H.
Published: May 2016

The newly devised chiral organoaluminum compounds (I) and (II) are effective catalysts for asym.
ChemInform Abstract: Chemistry of Hydrotrioxides. Preparation, Characterization, and Thermal Decomposition of Hydrotrioxides of Alkyl α‐Methylbenzyl Ethers and α‐Methylbenzyl Alcohol. Attempted Spin Trapping of Trioxyl Radicals.
Authors: PLESNICAR B. , KOVAC F. , SCHARA M.
Published: May 2016

The hydrotrioxides (I), which are prepared from the corresponding benzyl ethers or benzyl alcohols by ozonization in diethyl ether at ‐70 °C in yields of 10‐40%, are characterized by 1H and 13C NMR indicating intra‐ and intermolecular hydrogen‐bonded species.
ChemInform Abstract: Photoinitiated Charge Separation in a Carotenoid‐Porphyrin‐Diquinone Tetrad: Enhanced Quantum Yields via Multistep Electron Transfers.
Authors: GUST D. , MOORE T. A. , MOORE A. L. , BARRETT D. , HARDING L. O. , MAKINGS L. R. , LIDDELL P. A. , DE SCHRYVER F. C. , VAN DER AUWERAER M. , BENSASSON R. V. , ROUGEE M.
Published: May 2016

Excitation of (Ia) in CH2Cl2 at 295 K results in a transient spectrum ascribed to the species Q·‐ B‐QA‐P‐C·+ (Q: quinone; P: porphyrin; C: carotene unit).
ChemInform Abstract: Effect of Diazirine Concentration on the Reaction of 3‐Benzyl‐3‐chlorodiazirine with Methanol.
Authors: LIU M. T. H. , SUBRAMANIAN R.
Published: May 2016

The product ratio (IV)/(III) decreases when the concentration of (I) is enhanced and the amount of HCl released builds up.
ChemInform Abstract: Photochemistry of 6‐Trifluoromethyl‐4,4‐dimethyl‐2‐cyclohexenone.
Authors: CRUCIANI G. , MARGARETHA P.
Published: May 2016

The cyclohexenone derivatives (IV) undergo rearrangement reaction upon irradiation to give the bicyclohexanones (V) and the cyclopentenones (VI).
ChemInform Abstract: Selective Hydride‐Mediated Conjugate Reduction of α,β‐Unsaturated Carbonyl Compounds Using ((Ph3P)CuH)6.
Authors: MAHONEY W. S. , BRESTENSKY D. M. , STRYKER J. M.
Published: May 2016

The title copper(I) hydride cluster is generally effective for the selective conjugate hydride addition to α,β‐unsaturated carbonyl compounds such as (I), (III), (V), (VII), (IX)‐(XII).
ChemInform Abstract: Rates and Mechanisms of Hydrolysis of Esters of Phosphorous Acid.
Authors: WESTHEIMER F. H. , HUANG S. , COVITZ F.
Published: May 2016

Trialkyl phosphites hydrolyze in alkali several hundred times as fast as do the corresponding phosphates (alkyl: ‐Me, ‐Et); in acid, however, the phosphite hydrolyzes 1012 times as fast as the phosphate.
ChemInform Abstract: Diazomethane Radical Cations as a Dipolarophile in the Dimeric Olefin Formation from Diazo Compounds.
Authors: ISHIGURO K. , SAWAKI Y. , IWAMURA H.
Published: May 2016

The one‐electron oxidation of the diazomethanes (I), forming the olefins (II) with preferential cis‐configuration, is investigated.
ChemInform Abstract: Photocycloaddition of Perfluoroalkanoic Acid Fluorides to Perfluoroalkenes. Perfluoroetheroxetanes.
Authors: BARGIGIA G. , TONELLI C. , TATO M.
Published: May 2016

Photochemical cycloaddition reaction of the perfluorocarboxylic acid fluorides (I) with the perfluoroalkenes (II) yields mixtures of the oxetanes (III) and (IV).
ChemInform Abstract: Synthesis of 4‐Methylthio‐2(1H)‐pyridone Derivatives Using Ketene Dithioacetals.
Authors: TOMINAGA Y. , KAWABE M. , HOSOMI A.
Published: May 2016

The ketones (I) undergo cyclocondensation with the dicyano ketene dithioacetal (IIa) or bis(methylthio)methylenecyanoacetamide (IIb), yielding the pyridones (III) and/or the pyrones (IV).
ChemInform Abstract: Investigations of Nitrogen Heterocycles. Part 6. Reaction of Organo‐ Magnesium Derivatives of 7‐Aza‐ and Benzoindoles with Diethyl Oxalate and Reactivity of Ethoxalylindoles.
Authors: SHADRINA L. P. , DORMIDONTOV YU. P. , PONOMAREV V. G. , LAPKIN I. I.
Published: May 2016

The course of the reaction between the heterocyclic organo‐magnesium compounds (Ia) ‐ (Id) and diethyl oxalate (II) depends on the solvent used.
ChemInform Abstract: Synthesis of Aromatic Pyrazolo(4,5‐b)pyridine Derivatives.
Authors: ORLOV V. D. , KIROGA KH. , KOLOS N. N.
Published: May 2016

The aminopyrazole (I) reacts with the chalcones (II) to give the dihydropyrazolopyridines (III).
ChemInform Abstract: Occurance of Ligand Coupling in the Reactions of Various Sulfoxides with Grignard Reagents.
Authors: KAWAI T. , KODERA Y. , FURUKAWA N. , OAE S. , ISHIDA M. , TAKEDA T. , WAKABAYASHI S.
Published: May 2016

The methylsulfinyl heterocycles (IIa) and (IIb) are converted to the benzyl‐substituted compounds (IIIa) and (IIId) by treatment with benzylmagnesium bromide (Id).
ChemInform Abstract: Synthesis of Ethyl 2‐(4‐(3‐Fluoro‐2‐quinoxalinyloxy)phenoxy)propanoate as Herbicide.
Authors: MAKINO K. , YOSHIOKA H.
Published: May 2016

The title compound (Ia), an analogue of the herbicide quizalofop‐ethyl (Ib), is synthesized in a one‐pot procedure by fluorination of 2,3‐dichloroquinoxaline (II) with cesium fluoride followed by coupling with the propanoate (III).
ChemInform Abstract: Oxamic Acid Derivatives in Heterocyclic Synthesis: Preparation of 1,2,4‐Triazolo(1,5‐a)pyrazine Derivatives.
Authors: MOLINA P. , VILAPLANA M. J. , ANDREU P. L. , MOLLER J.
Published: May 2016

Benzoin (I) reacts with the anilines (II) and oxalyl chloride (III) to produce the oxamoyl chlorides (IV).
ChemInform Abstract: Ring Closures with α‐Chloroazines.
Authors: PILGRAM K. H. , SKILES R. D.
Published: May 2016

Reaction of the chloroazines (I) with the substituted hydrazines (II) yields the tetrahydrotetrazines (III), whereas (I) and hydrazine (VI) produce only minor amounts of the tetrahydrotetrazines (VII), together with the N‐aminotriazoles (VIII) and their deaminated derivatives (IX).
ChemInform Abstract: Macrocyclic and Macropolycyclic Compounds Based Upon 1,3‐Disubstituted Propane Units.
Authors: PRATT J. A. E. , SUTHERLAND I. O. , NEWTON R. F.
Published: May 2016

The synthesis of macrocyclic compounds (I)‐(III) is described (conformational analysis of (II)), as well as the conversion of (Ia), (Ib) to macropolycyclic derivatives (IV).
ChemInform Abstract: Highly Reduced Organometallics. Part 23. Synthesis, Isolation, and Characterization of Hexacarbonyltitanate(2‐), Ti(CO)2‐ 6. Titanium NMR Spectra of Carbonyltitanates.
Authors: CHI K. M. , FRERICHS S. R. , PHILSON S. B. , ELLIS J. E.
Published: May 2016

Reductive carbonylations of either (II) or (IV) by potassium naphthalenide yield isolable salts of the title dianion (Ti(CO)6)2‐ provided an appropriate cryptand or crown ether is present to effectively complex the potassium cations.
ChemInform Abstract: f‐Element‐Crown Ether Complexes. Part 9. The Role of Solvent Hydrogen Bonding: Synthesis and Crystal Structure of Aquotetrachlorotris(ethanol)thorium(IV)‐1,4,7,10,13,16‐Hexaoxacyclo‐octadecane‐Water (1/1/1).
Authors: ROGERS R. D. , KURIHARA L. K. , BENNING M. M.
Published: May 2016

The interaction of hydrated ThCl4 with 18‐crown‐6 in EtOH gives the title complex (no yield given), which crystallizes in the space group P1 with Z=2.
ChemInform Abstract: Synthetic, Structural, and Theoretical Studies on the Electron‐Deficient Cubanes (RC5H4)4Ti4S4, (RC5H4)4V4S4, and ((RC5H4)4V4S4)+.
Authors: DARKWA J. , LOCKEMEYER J. R. , BOYD P. D. W. , RAUCHFUSS T. B. , RHEINGOLD A. L.
Published: May 2016

Treatment of (I) with PBu3 gives the electron‐deficient 56e‐cubane (IIa).
ChemInform Abstract: Conjugate Addition of Acetylides to Complexes of Type (M(CO)4((Ph2P)2C=CH2)) (M: Cr, Mo, or W): Crystal Structure of (M(CO)4((Ph2P)2C=CHCH=CHPh)) Formed by the Base‐Catalyzed Isomerization of (M(CO)4((Ph2P)2CHCH2CCPh)).
Authors: HASSAN F. S. M. , SHAW B. L. , THORNTON‐PETT M.
Published: May 2016

Treatment of the vinylidenebis(diphenylphosphine) complexes (I) with the lithium acetylides (II) in the presence of N,N,N',N'‐tetramethylethylenediamine results in a smooth addition giving the products (III).
ChemInform Abstract: Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 69. Reactions of (MoW(CC6H4Me‐4)(CO)7(η‐C5H5)) with But‐2‐yne; Crystal Structures of (MoW(μ‐C(C6H4Me‐4)C(Me)C(Me))(CO)3(η‐MeC2Me)2(η‐C5H5)) and (MoW(μ‐C(C6H4Me‐4)C(=CH2)C(H)MeC(O))(CO)6(η‐C5H5))·0.5 CH2Cl2.
Authors: DELGADO E. , GARCIA M. E. , JEFFERY J. C. , SHERWOOD P. , STONE F. G. A.
Published: May 2016

Treatment of the title carbyne complex (I) with an excess of butyne (II) in refluxing THF affords the title complex (III), however, at room temp. the complex (IV) is formed.
ChemInform Abstract: Substituent Effects on Rhenium and Phosphorus Hyperfine Coupling Constants of Organometallic Rhenium(0) Radicals Spin Trapped by 9,10‐Phenanthroquinone and Its Derivatives.
Authors: HO T.‐I. , CHANG C.‐M. , WANG S. R. , CHENG C. P.
Published: May 2016

The photochemical reaction between the phenanthroquinone derivatives (I) and Re2(CO)10 results in trapped radicals.
ChemInform Abstract: Crown Thioether Chemistry. Synthesis and Structural Investigation of 1,5,9‐Trithiacyclododecane (Trithia‐12‐crown‐3) and Its Copper(II) Chloride Adduct.
Authors: RAWLE S. C. , ADMANS G. A. , COOPER S. R.
Published: May 2016

The macrocyclic trithia‐12‐crown‐3 is prepared as shown in the scheme and reacts with CuCl2 to give the complex (VIII).
ChemInform Abstract: Synthesis and Thermal Decomposition of Palladacyclopentane Derivatives of the Type Cyclic (Pd(CH2CHRCHRCH2)L2) (R: H or Me). X‐Ray Crystal Structure of Cyclic (Pd(CH2CH2CH2CH2)(bipy)).
Authors: DIVERSI P. , INGROSSO G. , LUCHERINI A. , LUMINI T. , MARCHETTI F. , ADOVASIO V. , NARDELLI M.
Published: May 2016

The palladacyclopentane compounds (Ic)‐(Ig) are prepared according to the scheme either by dialkylation of the appropriate dichloro complexes (II) or by substitution of the N,N,N',N'‐tetramethylethylenediamine ligand from the corresponding palladacyclopentane derivative (Ie).
ChemInform Abstract: Stepwise Construction of (Os6(CO)18(μ6‐P))‐, a Hexanuclear Osmium Cluster Monoanion with Trigonal‐Prismatic Coordination for Phosphorus: X‐Ray Crystal Structures of (Os6(μ‐H)2(CO)20(MeCN)(μ3‐PH)) and (PPh3Me) (Os6(CO)18(μ6‐P)).
Authors: COLBRAN S. B. , LAHOZ F. J. , RAITHBY P. R. , LEWIS J. , JOHNSON B. F. G. , CARDIN C. J.
Published: May 2016

Treatment of the labile cluster (I) with PH3 (II) affords the phosphine analogue (III) which is converted into the μ‐hydrido‐μ‐phosphido cluster (IV) as shown.
ChemInform Abstract: Synthesis of 13α‐Steroids. A New Route to 16‐Substituted 13α‐Androstanes.
Authors: AUCLAIR J.‐P. , GRAMAIN J.‐C.
Published: May 2016

Contraction of the D‐ring in the 13 α‐homoandrostane derivative (III) becomes possible either by oxidation with Tl(III) or by Favorskii rearrangement of the bromoketone obtained from (III).
ChemInform Abstract: 1‐Alkoxycarbonyl‐ and 1‐Acyl‐v‐triazolo(4,5‐b)pyridine/Hydrogen Peroxide Oxygenating Systems.
Authors: PAGANI ZECCHINI G. , TORRINI I. , PAGLIALUNGA PARADISI M.
Published: May 2016

The 1‐acyltriazolopyridines (I) and hydrogen peroxide react with trans‐ stilbene (II) or cholesteryl acetate (IV) to give the epoxides (III) or (V).
ChemInform Abstract: A Novel Method for Regioselective 2′‐O‐Methylation and Its Application to the Synthesis of 2′‐O‐Methyl‐5‐(((carboxymethyl)amino)methyl)uridine.
Authors: SEKINE M. , PESHAKOVA L. S. , HATA T. , YOKOYAMA S. , MIYAZAWA T.
Published: May 2016

Selective 2'‐O‐methylation of uridines such as (I) is achieved by coupling with 1,3‐benzodithiolium tetrafluoroborate (II) followed by reductive cleavage of (III) to yield (IV).
ChemInform Abstract: Syntheses of α‐(R)‐ and α‐(S)‐Lipoic Acid from (S)‐Malic Acid.
Authors: BROOKES M. H. , GOLDING B. T. , HUDSON A. T.
Published: May 2016

The enantiomers (IV), both prepared from the less expensive (S) isomer (I) of malic acid, are converted to the title compounds (X) (22% overall yield for (Xa) from (VI)).