bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Stereochemistry of Dewar Benzenes ‐ Molecular Structures Influenced by Electronic and Steric Effects.
Authors: IRNGARTINGER H. , DEUTER J. , WINGERT H. , REGITZ M.
Published: May 2016

Dewar benzenes (Ia), (Ib), and (IIb) all have space group P21/c with Z=4 while (IIa) has P1 with Z=2.
ChemInform Abstract: Sequential Radical Cyclization, Alkoxy Radical Fragmentation, and Recyclization Processes: A Novel Method for the Synthesis of Fused Cycloheptanones and Cyclooctenones from Cyclohexanones.
Authors: NISHIDA A. , TAKAHASHI H. , TAKEDA H. , TAKADA N. , YONEMITSU O.
Published: May 2016

The title radical cyclization processes provide the various products shown in the scheme from photochemical or thermal reactions.
ChemInform Abstract: The Photochemistry of M(CO)4(η4‐norbornadiene) Complexes of Group 6 Transition Metals (M: Cr, Mo, W) in Low‐Temperature Matrices.
Authors: GREVELS F.‐W. , JACKE J. , KLOTZBUECHER W. E. + , SCHAFFNER K. , HOOKER R. H. , REST A. J.
Published: May 2016

The photolysis of the title complexes (I) involves both loss of CO and cleavage of metal‐olefin bonds to an extent depending on the metal and on the excitation wavelength.
ChemInform Abstract: Construction of Fused‐Ring Skeletons Based on Photochemical Rearrangements of Bicyclo(3.2.1)oct‐6‐en‐2‐ones and Application to a Total Synthesis of (.+‐.)‐δ9(12)‐Capnellene.
Authors: UYEHARA T. , FURUTA T. , AKAMATSU M. , KATO T. , YAMAMOTO Y.
Published: May 2016

Photolysis of the bicyclo(3.2.1)octenones (I), (V), (VII), and (IX) results in (1,3)acyl migration to form the products shown in the reaction scheme.
ChemInform Abstract: The Mechanism of Formation of m‐Xylylene Type Biradicals Produced by Photolysis of Polymethyl Benzenes or Dihalomethyl Benzenes.
Authors: HAIDER K. W. , MIGIRDICYAN E. , PLATZ M. S. , SOUNDARARAJAN N. , DESPRES A.
Published: May 2016

It is demonstrated by a range of experiments that biradical (III) is not formed sequentially via photolysis of the monoradical (II).
ChemInform Abstract: Reactivity of Bis(trifluoromethyl)tellurium: Oxidative Trifluoromethylations and Ligand Exchanges with Group 5A and 6A (15 and 16) Elements and Their Halides.
Authors: GANJA E. A. , MORRISON J. A.
Published: May 2016

The title compound reacts with I2, S8, Se, P4, and As at 220 °C to afford the trifluoromethyl compounds (I) (yield 97%), (II) (92/92%), and (III) (70/46%), respectively.
ChemInform Abstract: Synthesis of ω‐Chloroalkyl Isocyanide Dichlorides by Thermolysis of Phosgeniminium Salts.
Authors: GUILLOT N. , MARIN B. , JANOUSEK Z. , VIEHE H. G.
Published: May 2016

Pyrolysis of the phosgeniminium salts (I), (IIIc), and (IX) produces the isocyanide dichlorides (II), (VI), or (X) and (XI), whereas thermolysis of the analogues (IIIa), (IIIb), and (VII) gives the N‐trichloromethylchloroformamidines (IV) or (VIII).
ChemInform Abstract: 5,6‐Dichlorohexafluorocyclohexa‐1,3‐dienes: Hexafluorobenzene Synthons.
Authors: DAILEY W. P. , CORREA R. A. , HARRISON E. III , LEMAL D. M.
Published: May 2016

cis‐5,6‐Dichlorofluorocyclohexa‐1,3‐diene (VI) is synthesized from hexafluorobenzene (I) via hexafluoro Dewar benzene (II) as shown in the reaction scheme.
ChemInform Abstract: Tributyltin Hydride‐Induced O‐Stannyl Ketyls in the Cyclization of Aldehydes and Ketones with Alkenes.
Authors: ENHOLM E. J. , PRASAD G.
Published: May 2016

Treatment of unsaturated aldehydes, e.g. (I) or (X), and ketones, e.g. (V), with tributyltin hydride results in cyclization to form cycloalkanols and γ‐lactones.
ChemInform Abstract: The Chemistry of L‐Ascorbic and D‐Isoascorbic Acids. Part 3. Efficient Syntheses of Pure (R)‐ and (S)‐1,2‐O‐Isopropylidene‐1,2,4‐butanetriols.
Authors: SAIBABA R. , SARMA M. S. P. , ABUSHANAB E.
Published: May 2016

The epoxides (I), derived from L‐ascorbic or D‐isoascorbic acid, are deoxygenated upon heating with triphenylphosphine, yielding the vinyldioxolanes (II).
ChemInform Abstract: A New Facile Synthesis of 4‐Arylamino‐5,7‐dinitrobenzofurazans.
Authors: NICLAS H.‐J. , GOEHRMANN B. + , GRUENDEMANN E. +
Published: May 2016

The alkali metal salts (I), derived from formanilides, are coupled with 4,6‐dinitrobenzofuroxan (II) to generate the Meisenheimer complexes (III).
ChemInform Abstract: TiCl4‐Induced Iminium Ion Cyclizations of α‐Cyanoamines.
Authors: YANG T.‐K. , HUNG S.‐M. , LEE D.‐S. , HONG A.‐W. , CHENG C.‐C.
Published: May 2016

Allyl(benzyl)(cyanomethyl)amine (I) is treated with excess titanium tetrachloride to give the secondary amine (II).
ChemInform Abstract: Displacements at the Nitrogen of Lithioalkoxylamides by Organometallic Reagents.
Authors: BEAK P. , SELLING G. W.
Published: May 2016

Amination of the aryllithium compounds (I) with O‐methylhydroxylamine (II) in the presence of methyllithium and subsequent acylation with benzoyl chloride (III) produce the benzanilides (IV).
ChemInform Abstract: Biradical Formation from Acyclic Conjugated Enyne‐Allene System Related to Neocarzinostatin and Esperamicin‐Calichemicin.
Authors: NAGATA R. , YAMANAKA H. , OKAZAKI E. , SAITO I.
Published: May 2016

cis‐1,2‐Dichloroethene (I) reacts consecutively with the acetylenic compounds (II) and (IV) to form the alkenediynols (V).
ChemInform Abstract: Carbenoid Properties of Phosphenium Salts. Synthesis of the First 1‐Aza‐3‐phosphetine Cations.
Authors: ROQUES C. , MAZIERES M. R. , MAJORAL J.‐P. , SANCHEZ M. , FOUCAUD A.
Published: May 2016

Cyclocondensation of the phosphenium salts (I) with the isocyanides (II) yields in general the 1‐aza‐3‐phosphetine salts (III) and (IV) as the main products.
ChemInform Abstract: Syntheses and Characterization of Three Tris Complexes of the Ligand 5,6‐Dihydro‐1,4‐dithiin‐2,3‐dithiolate. Crystal Structure of ((C6H5)4As)2(Ti(DDDT)3).
Authors: WELCH J. H. , BEREMAN R. D. , SINGH P.
Published: May 2016

The tris(dithiolato) complexes (III) ((IIIa): space group P212121, Z = 8) are obtained by reaction of the potassium salt (I) of the title ligand with TiCl3 (II), MnCl2·4 H2O/air, and NbCl5 in the presence of corresponding salts.
ChemInform Abstract: Syntheses and Structures of New 2,2′‐Bipyridine Complexes of Niobium, Molybdenum, Tungsten, and Rhenium in High Oxidation States.
Authors: HERRMANN W. A. , THIEL W. R. , HERDTWECK E.
Published: May 2016

The bipyridine complexes (IV), (Va), (VII), (VIII), (X), (XII), and (XV) are synthesized according to the scheme.
ChemInform Abstract: Synthesis and Electrochemistry of 2,2′‐Bipyridyl Complexes of Dioxorhenium(V).
Authors: RAM M. S. , JOHNSON C. S. , BLACKBOURN R. L. , HUPP J. T.
Published: May 2016

The title complexes (III) and (V) represent apparently the first examples of solution‐stable hexacoordinate cis‐dioxo Re species with d2 electronic configuration.
ChemInform Abstract: Rearrangements of Cyclopropanes σ Bonded to Iron: α‐Eliminations to Carbene Complexes and Ring Opening to π‐Allyl Complexes.
Authors: CONTI N. J. , CROWTHER D. J. , TIVAKORNPANNARAI S. , JONES W. M.
Published: May 2016

A number of α‐ and β‐substituted σ‐cyclopropyliron complexes are photolyzed and their products examined.
ChemInform Abstract: Stereoselective Aldol Coupling of Cobalt‐Complexed Alkynyl Aldehydes.
Authors: JU J. , REDDY B. R. , KHAN M. , NICHOLAS K. M.
Published: May 2016

Reaction of the trimethylsilyl enol ethers (I) and (IV) with the formyl alkynyldicobalt hexacarbonyl complexes (II), prepared from the corresponding alkynals and dicobalt octacarbonyl, yields the aldol adducts (III) and (V).
ChemInform Abstract: Reduction of (Cyclobutadiene)(cyclopentadienyl)‐ and (1,5‐Cyclooctadiene)(cyclopentadienyl)nickel Cations.
Authors: KOELLE U. + , DING T.‐Z. , KELLER H. , RAMAKRISHNA B. L. , RAABE E. , KRUEGER C. + , RAABE G. , FLEISCHHAUER J.
Published: May 2016

The cationic Ni sandwich complexes (IIIc) (yield 79%) and (IIId) (60%) are prepared similarly as demonstrated for the analogues (IIIa) and (IIIb) starting from the (Ni(C4Ph4)Br2)2.
ChemInform Abstract: Binucleating Macrocyclic (14)N4 Ligands and Their Complexes. Synthesis of the Free Ligand 2,3‐Dioxo‐5,6:13,14‐dibenzo‐9,10‐(4′,5′‐dimethylbenzo)‐1,4,8,11‐tetraazacyclotetradeca‐7,11‐diene (L) and of the 7,12‐Me2‐L Metal Complexes and Derivatives. Crystal Structures and Properties of the (M′)(M(7,12‐Me2‐L)) Complexes (M: Ni(II); M: Co(II); M′: ZnCl2, M: Ni(II); M′: (Na(5‐crown‐15))+, M: Ni(II); M′: ((C2H5)4N)+, M: Ni(II)).
Authors: CHRISTODOULOU D. , KANATZIDIS M. G. , COUCOUVANIS D.
Published: May 2016

The Ni complex (Vb) (Pnam, Z=4) is isomorphous with the Co analogue (Va) but is prepared just as (Vc) in a template reaction from the corresponding Schiff base precursor, (II) and Ni acetate.
ChemInform Abstract: Enantioselective Construction of a Quaternary Asymmetric Carbon Center: A Versatile Synthesis of α‐Alkyl α‐Amino Acids.
Authors: IHARA M. , TAKAHASHI M. , NIITSUMA H. , TANIGUCHI N. , YASUI K. , FUKUMOTO K.
Published: May 2016

Substitution of the chiral half esters of the monosubstituted malonic acids (I) with the halides (II) leads to the formation of mixtures of the diastereomeric alkyl‐ or benzylmalonic half esters (III) and (IV).
ChemInform Abstract: Chemical Modifications of the Aliphatic Bridge in Ansamycins. Synthesis and Activity of 18,19‐Dihydrorifamycin S.
Authors: BIANCO A. D. , BRUFANI M. , CAPITANI D. , CELLAI L. , GUISO M. , ROSSI C. , SEGRE A.
Published: May 2016

In addition to the quinone system the C‐18/C‐19 double bond in rifamycin S (I) is reduced by hydrazine hydrate during 30 h. Following reoxidation of the quinone system leads to the title compound (II).
ChemInform Abstract: First Decomposition Products of Hexahydrates MCl3·6 H2O (M: V, Ti, Cr, Al) with a Refinement of the Structure of (Cr(H2O)6)Cl3.
Authors: SPUNDFLASCHE E. , FINK H. , SEIFERT H. J.
Published: May 2016

The thermal decompositions of AlCl3·6 H2O and TiCl3·6 H2O occur in one step to give amorphous end products free of chloride.
ChemInform Abstract: New Alkaline Earth‐Gallium Silicides, Germanides, and Stannides with AlB2‐Type Related Structures
Authors: CZYBULKA A. , PINGER B. , SCHUSTER H.‐U.
Published: May 2016

CaGaSi, CaGaGe, CaGaSn, SrGaGe, SrGaSn, and BaGaGe are prepared from mixtures of the elements at 1100‐1300 °C. In their hexagonal structures related to the AlB2 type the alkaline‐earth atoms occupy the positions of the Al atoms, the Ga and metalloid atoms alternating those of the B atoms.
ChemInform Abstract: Structure of the Fluoride Hydrates CoAlF5·7 H2O (I) and MnFeF5·7 H2O (II).
Authors: HERDTWECK E. , MASSA W.
Published: May 2016

The title fluoride hydrates, which are obtained for the first time as single crystals, crystallize in the monoclinic system (C2/m, Z=4 for (I) and C2/c, Z = 8 for (II)).
ChemInform Abstract: Activation Process of CuY Zeolite Catalyst Observed by TPR and EXAFS Measurements.
Authors: TANABE S. , MATSUMOTO H.
Published: May 2016

The structural changes of Cu in Y‐zeolite during the TPR (temp.
ChemInform Abstract: New Method for the Synthesis of Monoalkyl‐Substituted Cyclobutanes.
Authors: DZHEMILEV U. M. , IBRAGIMOV A. G. , ZOLOTAREV A. P. , MUSLUKHOV R. R. , TOLSTIKOV G. A.
Published: May 2016

The 1‐alkenes (I) are treated with triethylaluminum (II) in the presence of zirconocene dichloride to generate the aluminacyclopentanes (III).
ChemInform Abstract: The Clemmensen Reduction of Pentacyclo(6.4.0.02,7.03,11.06,10)dodecane‐9,12‐dione.
Authors: MARTINS F. J. C. , FOURIE L. , VENTER H. J. , WESSELS P. L.
Published: May 2016

Clemmensen reduction of the title compound (I) yields the pentacyclo‐2‐dodecanol (II) and the pentacyclododecane‐1,8‐diol (III) as the main products along with the tetracyclododecane‐2,7‐dione (IV) and its hemiacetal (V).
ChemInform Abstract: Some Naphthalenepenta(and hexa)sulfonic Acids.
Authors: CREMER H. R. , SARTORI P.
Published: May 2016

The poly(tert‐butylthio)naphthalenes (I) and (VI) are reduced with sodium in HMPA to produce the hexamercaptonaphthalenes (II) or (VII) and (II).
ChemInform Abstract: Cyclization of N1‐(1‐Anthraquinonyl)‐N2‐phenylthiourea into Thiazole Derivatives.
Authors: SAVEL'EV V. A. , LOSKUTOV V. A.
Published: May 2016

The thiourea (III), prepared from the aminoanthraquinone (I) and phenyl isothiocyanate (II), is cyclized to yield the phenyliminoanthrathiazole (IV) upon treatment with alkali.
ChemInform Abstract: Asymmetric Synthesis. Part 18. Preparation of Chiral 1,2‐Diamines via the CN (R,S) Method. Application to the Synthesis of an Analogue of Tetraponerine.
Authors: ZHU J. , QUIRION J.‐C. , HUSSON H.‐P.
Published: May 2016

The cyanoperhydrooxazolopyridine (I) reacts with butyllithium (IIa) or lithium dibutylcuprate (IIb) to give the imine (III) which is reductively cleaved with sodium boranate to yield the diamino carbinol (IV).
ChemInform Abstract: Studies on the Imidazo(1,2‐a)pyridinic System: Synthesis of Pyrido‐(1′,2′:1,2)imidazo(5,4‐d)(1,3)benzodiazepines.
Authors: TEULADE J. C. , GUEIFFIER A. , CHAPAT J. P. , GRASSY G. , CARPY A. , H'NAIFI A. , PERLY B. , COUQUELET J.
Published: May 2016

Catalytic hydrogenation of the nitroso(nitrophenyl)imidazopyridine (I) results in the formation of the amines (II) ‐ (V) or (III) and (IV), depending on the reaction conditions.
ChemInform Abstract: Synthesis of Fluorinated Phosphonic, Sulfonic, and Mixed Phosphonic/Sulfonic Acids.
Authors: SU D. , CEN W. , KIRCHMEIER R. L. , SHREEVE J. M.
Published: May 2016

Successful routes to a variety of mixed phosphonic/sulfonic acids (VII), (XIV), the salt (XVIII) and partially fluorinated phosphinic acids (XI)‐(XIII) have been developed.
ChemInform Abstract: Metal Complexes of 3‐Pyridazinecarboxylic Acid (Hpdc). The X‐Ray Crystal Structure of (Mn(pdc)2(H2O)2)·2 H2O and a Structural Comparison Between Equivalent Pyridine and Pyridazine Systems.
Authors: ARDIWINATA E. S. , CRAIG D. C. , PHILLIPS D. J.
Published: May 2016

3‐Pyridazinecarboxylic acid reacts with Mn and Ni carbonate or Co, Cu and Zn acetate to give the complexes (I) and (II) (yields not given).
ChemInform Abstract: β‐Agostic Interactions in (C5H4Me)2Zr(CH2CH2R)(PMe3)+ Complexes.
Authors: JORDAN R. F. , BRADLEY P. K. , BAENZIGER N. C. , LAPOINTE R. E.
Published: May 2016

The structure of the title complexes is confirmed by an X‐ray analysis of (IIIa) ( P21/n, Z = 8).
ChemInform Abstract: Cyclometalated Compounds. Part 4. Cyclopalladation of Phenylpyrimidines and X‐Ray Structure of a Doubly Cyclopalladated Derivative of 4,6‐Diphenylpyrimidine.
Authors: CAYGILL G. B. , HARTSHORN R. M. , STEEL P. J.
Published: May 2016

The cyclopalladated dichloro compounds are characterized by 1H and 13C NMR studies of their acetylacetonato complexes.
ChemInform Abstract: Asymmetric Alkylations of a Phenylalanylglycinate Equivalent. Novel Route to Dipeptides Bearing α‐Alkyl‐α‐amino Acid Residues.
Authors: OJIMA I. , KOMATA T. , QIU X.
Published: May 2016

Asymmetric alkylations of the chiral β‐lactam acetates (‐)‐(I) and (+)‐(I), which are chiral equivalents for glycine as well as for phenylalanylglycine, are investigated.
ChemInform Abstract: A New Synthesis of α‐Amino Acids E‐β,γ‐Enol Ethers.
Authors: DAUMAS M. , QUANG L. V. , QUANG Y. V. , LE GOFFIC F.
Published: May 2016

The glycerol mono(alkyl ethers) (I) are oxidatively cleaved to form the aldehydes (II) which undergo Wittig‐Horner olefination with the α‐amino phosphonates (III), producing Z/E‐mixtures of the enamines (IV).
ChemInform Abstract: Electroorganic Synthesis. Part 46. Mixed Kolbe Electrolyses with Sugar Carboxylic Acids.
Authors: WEIPER A. , SCHAEFER H. J. +
Published: May 2016

Electrolysis of the sugar carboxylic acids (I) with the coacids (II) (ratio 1:10) gives satisfactory yields of the unsymmetrical coupling products (III).
ChemInform Abstract: Catalytic Cyclophanes. Part 5. A Porphyrin‐Bridged Cyclophane as a Model for Cytochrome P‐450 Enzymes.
Authors: BENSON D. R. , VALENTEKOVICH R. , DIEDERICH F.
Published: May 2016

In order to develop new homogeneous catalysts for synthetically useful arene hydroxylations, the synthesis and complexation properties of the porphyrin‐bridged cyclophane (Ia) and its iron complex (Ib) are described.
ChemInform Abstract: 3‐Sulfonyl‐1‐carba‐1‐dethiacephems.
Authors: CROWELL T. A. , HALLIDAY B. D. , MCDONALD J. H. III , INDELICATO J. M. , PASINI C. E. , WU E. C. Y.
Published: May 2016

The 1‐carba‐1‐dethiacephalosporin p‐nitrobenzyl ester (I) is transesterified via the acid (II) to form the allyl (IVa) and the diphenylmethyl ester (IVb).
ChemInform Abstract: 3‐Quaternary Ammonium 1‐Carba‐1‐dethiacephems.
Authors: COOK G. K. , MCDONALD J. H. III , ALBORN W. JUN. , BOYD D. B. , EUDALY J. A. , INDELICATO J. M. , JOHNSON R. , KASHER J. S. , PASINI C. E. , PRESTON D. A. , WU E. C. Y.
Published: May 2016

Quaternization of the 1‐carba‐1‐dethiacephem enol triflates (I) with the pyridines (II) forms the corresponding ammonium salts (III) which are deprotected to give the betaines (IV).
ChemInform Abstract: Synthesis of 1,2‐Disubstituted 1‐Carbacephems.
Authors: SAITO H. , SUZUKI F. , HIRATA T.
Published: May 2016

The azides (IIa), (IIc), and (IId), prepared from the aldehyde (I) or the dehydrocarbacephem (III) as outlined in the reaction scheme, are hydrogenated in ethanol to produce the aminooxazabicyclooctenecarboxylates (V).
ChemInform Abstract: Correlation Between Low‐Pressure Thiophene HDS and High‐Pressure Dibenzothiophene HDS.
Authors: LEDOUX M. J. , HUU C. P. , SEGURA Y. , LUCK F.
Published: May 2016

It is shown that if the kinetics of the reaction is carefully applied, the hydrodesulfurization of thiophene under atmospheric pressure of H2 is an excellent predictive test of the hydrodesulfurization of dibenzothiophene under industrial conditions.
ChemInform Abstract: Tafel Plots from Illuminated Photoelectrodes. A New Insight Into Charge Transfer Mechanism.
Authors: KUEHNE H.‐M. + , SCHEFOLD J.
Published: May 2016

The mechanism of charge transfer in the H2 evolution reaction is studied at bare and metal‐coated (Pt, Au, Ag, Cu, Pb) p‐ and n‐type InP electrodes.
ChemInform Abstract: The Electro‐Oxidation of Some Insoluble Inorganic Sulfides, Selenides, and Tellurides in Cationic Surfactant‐Aqueous Sodium Hydroxide Systems
Authors: FRANKLIN T. C. , ADENIYI W. K. , NNODIMELE R.
Published: May 2016

is studied using two types of cells, a slurry cell and a sandwich cell.
ChemInform Abstract: The Interaction of Lead(II) with Oxaaza Macrocycles: The X‐Ray Crystal Structures of Lead(II) Complexes of an N3O3 Schiff‐Base Macrocycle and of the Corresponding Saturated Macrocycle.
Authors: BASHALL A. , MCPARTLIN M. , MURPHY B. P. , FENTON D. E. , KITCHEN S. J. , TASKER P. A.
Published: May 2016

The X‐ray structural analyses of the complexes (I) (space group P21/n, Z = 8) and (II) (P1, Z=2), prepared by known methods, reveal significantly different coordination environments for the lead(II) ion.
ChemInform Abstract: Conjugate Addition of the Dianion of Diaryl Ketones to α,β‐Ethylenic Ketones Promoted by TiCl4‐Mg.
Authors: PONS J.‐M. , SANTELLI M.
Published: May 2016

Cross coupling of diaryl ketones such as (I) or (VIII) with enones such as (II), (V) or (IX) leads to product mixtures containing hemiacetals such as (III) or (X), ketols such as (VI) or enol ethers such as (XI).
ChemInform Abstract: Vicinal Bromopropargoxylation of Cyclic Olefins and Cobaloxime‐Mediated Heteroannulation to Functionalized 3‐Methyleneoxacyclopentanes.
Authors: LAST K. , HOFFMANN H. M. R.
Published: May 2016

The cyclic olefins (I) and (VI) react with NBS and 2‐propynol (II), forming the β‐bromo‐α‐propargyl ethers (III) or (VII) which are cyclized upon treatment with sodium borohydride in the presence of cobaloxime to give the tetrahydrofuran derivatives (IV) or (VIII).
ChemInform Abstract: Chemistry of Benzopentathiepin. Reactions of Benzopentathiepin with Active Methylene Compounds in the Presence of Bases.
Authors: SATO R. , KANAZAWA Y. , AKUTSU Y. , SAITO M.
Published: May 2016

Benzopentathiepin (I) is coupled with malononitrile (IIa) or ethyl cyanoacetate (IIb) in the presence of triethylamine to yield the 2‐amino‐1,4‐benzodithiins (III).
ChemInform Abstract: γ‐Lithio Alkoxides via Reductive Lithiation of Oxetanes by Aromatic Radical Anions.
Authors: MUDRYK B. , COHEN T.
Published: May 2016

Treatment of oxetane (I) with lithium 4,4'‐di‐tert‐butylbiphenylide results in the formation of γ‐lithio propoxide which reacts with the carbonyl compounds (II) to produce the butane‐1,4‐diols (III).
ChemInform Abstract: Syntheses of 2‐Chloro‐ and 2‐Amino‐5‐fluoropyridines and Isolation of a Novel Difluoroboryl Imidate.
Authors: HAND E. S. , BAKER D. C.
Published: May 2016

5‐Amino‐2‐chloropyridine (I) is converted to 2‐amino‐5‐fluoropyridine (VII) via the diazonium salt (IV) and 2‐chloro‐5‐fluoropyridine (V).
ChemInform Abstract: A Novel Synthesis of 3‐(2‐Amino‐4‐ethoxyphenyl)pyridine.
Authors: SHIBUYA K. , TAKAHASHI Y. , SHIGYO H. , OHTA T.
Published: May 2016

Mesylation of p‐cresol (I) with mesyl chloride (II) and subsequent nitration yield 4‐methyl‐3‐nitrophenyl methanesulfonate (V).
ChemInform Abstract: Photochemical Approach to the Synthesis of the Pyrrolo(1,4)benzodiazepine Antibiotics.
Authors: WEIDNER‐WELLS M. A. , DECAMP A. , MAZZOCCHI P. H.
Published: May 2016

Irradiation of the N‐pentenylphthalimides (V) and (XIV) results in the intramolecular cyclization to yield the tetrahydropyrrolobenzazepinediones (VI) and (XV).
ChemInform Abstract: Versatile Synthesis of 5,6‐Dihydro‐1,4‐dithiepins and Their Synthetic Applications.
Authors: SAIGO K. , HASHIMOTO Y. , FANG L. , HASEGAWA M.
Published: May 2016

Treatment of the acyloin dithioacetals (I) with trimethylsilyl triflate in ether results in ring expansion, producing the 5,6‐dihydro‐1,4‐dithiepins (II).
ChemInform Abstract: Synthesis of Novel Biscrown Ethers with Interconvertible Redox Structures.
Authors: NABESHIMA T. , SAKIYAMA A. , YAGYU A. , FURUKAWA N.
Published: May 2016

The disulfide‐bridged biscrown ether (VI), prepared as shown in the reaction scheme, is reductively cleaved to give the disulfide (VII).
ChemInform Abstract: Syntheses and Molecular Structures of the Tridentate Phosphine Ligand 2‐(Ph2P(CH2)3N=CH)C6H4OH (HL) and Its Rhenium(V) Complex (ReOCl2L)·0.25 CH2Cl2.
Authors: BANBERY H. J. , HUSSAIN W. , HAMOR T. A. , JONES C. J. , MCCLEVERTY J. A.
Published: May 2016

The title ligand (III), which contains both hard and soft donor atoms, adopts a structure (space group C2/c, Z = 8) in which the O and N atoms are linked by an intramolecular hydrogen bond.
ChemInform Abstract: trans‐1,2‐Difluoro‐1,2‐bis((tetracarbonyl)cobaltio)ethene, a Difluoroethyne Complex with μ2‐η1‐η1 Coordination.
Authors: LENTZ D. , PREUGSCHAT D.
Published: May 2016

The preparation of the title compound (III) (space group P21/c, Z=2) is achieved as shown in the scheme.
ChemInform Abstract: Synthesis of N‐Boc‐Statine and epi‐Statine.
Authors: WUTS P. G. M. , PUTT S. R.
Published: May 2016

The title compounds (V) and (VI) are prepared from (S)‐Boc‐leucinal (II) and (S)‐ or (R)‐1,1,2‐triphenyl‐2‐acetoxyethanol (I) (Braun's ester) by aldol addition reaction and subsequent hydrolysis.
ChemInform Abstract: Stereoselective Addition Reactions of Chiral α‐Sulfinyl Ketimine Anions with Ene Esters. Facile Asymmetric Syntheses of Indolo(2,3‐a)quinolizidine and Yohimbanoid Alkaloids.
Authors: HUA D. H. , BHARATHI S. N. , TAKUSAGAWA F. , TSUJIMOTO A. , PANANGADAN J. A. K. , HUNG M.‐H. , BRAVO A. A. , ERPELDING A. M.
Published: May 2016

Treatment of the cyclic sulfinyl ketimines (+)‐(I) and (+)‐(VII) with butyllithium or lithium diisopropylamide, followed by reaction with methyl acrylate (II) or methyl 1‐cyclohexenecarboxylate (IX), results in cyclization to yield unsaturated sulfinylated lactams, e.g. (III), or (X) and (XI).
ChemInform Abstract: High‐Pressure Synthesis and Crystal Structure of Potassium and Rubidium Ditungstate(VI), K2W2O7 and Rb2W2O7.
Authors: RANGE K.‐J. , HEGENBART W. , HEYNS A. M. , RAU F. , KLEMENT U.
Published: May 2016

The title compounds are prepared by high pressure reaction of stoichiometric mixtures of M2WO4 (M: K, Rb) and WO3 at 1000 °C and 40 kbar.
ChemInform Abstract: Oxidation of Copper in High Purity Water at 70 °C: Application to Electric Generator Operation.
Authors: MOLIERE M. , VERDIER Y. , LEYMONIE C.
Published: May 2016

Cooling efficiency losses, that potentially affect turbo‐generator stator winding conductors, are explained by accumulation of copper oxides in the channels.
ChemInform Abstract: The Influence of Ascorbic Acid on the Corrosion of Mild Steel
Authors: NIGAM A. N. , TRIPATHI R. P. , JANGID M. L. , DHOOT K. , CHACHARKAR M. P.
Published: May 2016

in brackish water is studied using Moessbauer spectroscopy.
ChemInform Abstract: Rare Earth Sulfide Oxides Ln2S2O (Ln: Er, Tm, Yb): High Pressure Synthesis and Crystal Structure.
Authors: RANGE K.‐J. , LANGE K. G. , GIETL A.
Published: May 2016

Single crystals of Tm2S2O are prepared by high pressure reaction of Tm2S3 and TmI3 (10 kbar, 1600 °C, 30 min).
ChemInform Abstract: Structure Refinement of Tm2S3‐IV, a Defect‐Th3P4‐Type High Pressure Modification of Thulium Sesquisulfide.
Authors: RANGE K.‐J. , GIETL A. , KLEMENT U. , LANGE K. G.
Published: May 2016

The Tm2S3‐IV high pressure modification is obtained from the reaction of the normal pressure modification Tm2S3‐I (space group P21/m) with TmI3 at 1900 K and 12 kbar.
ChemInform Abstract: Ternary Cobalt Chalcogenides A2CoX2 with A: Na, K, Rb, Cs and X: S, Se. Synthesis, Structure, and Magnetism.
Authors: BRONGER W. , BOMBA C.
Published: May 2016

The eight title compounds are prepared by reaction of elemental Co powder with the corresponding alkali metal carbonate in a stream of hydrogen loaded with sulfur and selenium, resp. (1030 K, 10 h).
ChemInform Abstract: Enantiospecific and Diastereoselective Preparation of Synthetic Equivalents of 2,4‐Deoxy‐2‐amino‐L‐threose and ‐L‐erythrose from (S)‐Ethyl β‐Hydroxybutyrate. Stereochemical Course of Their Condensations with C‐Nucleophiles.
Authors: GUANTI G. , BANFI L. , NARISANO E.
Published: May 2016

The chiral β‐hydroxycarboxylate (I) is converted to the protected hydrazino derivatives (III) and (IV).
ChemInform Abstract: Stereoselective Preparation of Synthetic Equivalents of 2‐Deoxy‐2‐amino‐ and 3‐Deoxy‐3‐aminotetroses from Malic Acid. Application to the Synthesis of C18‐D‐Ribophytosphingosine.
Authors: GUANTI G. , BANFI L. , NARISANO E.
Published: May 2016

The hydroxydicarboxylate (I) is converted to the α‐hydrazino β‐hydroxy γ‐siloxy esters (V) and (VI).
ChemInform Abstract: A New Entry into Versatile Ring Opening of O‐Benzyl Glycals and Related Compounds via Tl(NO3)3 and NaBH4.
Authors: PASSACANTILLI P.
Published: May 2016

The dihydropyran derivatives (I) and (VI) are cleaved upon consecutive treatment with thallium(III) nitrate in methanol (II) and sodium borohydride to produce the hydroxy enol ethers (III) or (VII).
ChemInform Abstract: Dehydrodimerization of Ketones, Carboxylic Acids, Amides, Esters, Alcohols, and Amines via Mercury Photosensitization.
Authors: BOOJAMRA C. G. , CRABTREE R. H. , FERGUSON R. R. , MUEDAS C. A.
Published: May 2016

The reaction mentioned in the title is achieved by Hg‐sensitized irradiation of various compounds in an atmosphere of hydrogen.
ChemInform Abstract: Tandem Aldolization/Lactonization/Dyotropic Rearrangement of α‐Amino Aldehydes.
Authors: REETZ M. T. , SCHMITZ A. , HOLDGRUEN X. +
Published: May 2016

The α‐dibenzylamino aldehydes (I) are coupled with the ketene silyl acetal (II) and rearranged in the presence of magnesium dichloride, forming the β‐amino‐γ‐lactones (III).
ChemInform Abstract: Oxidation of Methyl Indole‐3‐acetate Induced by FeCl3 and Secondary Amines.
Authors: BERGMAN J. , BERGMAN S. , LINDSTROEM J.‐O. +
Published: May 2016

Methyl indole‐3‐acetate (I) is oxidized with FeCl3 in the presence of the amines (II) to give the α‐amino acid esters (III) which are reduced, forming the amino alcohols (VI).
ChemInform Abstract: Wagner‐Meerwein Rearrangements of Substituted 11‐Oxatricyclo‐(6.2.1.01,6)undec‐9‐enes (2,4a‐Epoxyoctahydronaphthalenes).
Authors: KEAY B. A. , ROGERS C. , BONTRONT J.‐L. J.
Published: May 2016

Treatment of the epoxyoctahydronaphthalenes (Ia) and (Ib) or (VI) with iodine and silver acetate (II) leads to the formation of the (acetoxy)iodooxatricycloundecenes (III) or (VII).
ChemInform Abstract: Tandem Nucleophilic Substitution. 1,3‐Dipolar Cycloaddition Reactions of Oximes with Epoxides and Dipolarophiles.
Authors: GRIGG R. , MARKANDU J.
Published: May 2016

The oxime (II) reacts consecutively with the oxirane (I) and N‐methylmaleimide (IV) to form the fused isoxazolidines (V) and (VI).
ChemInform Abstract: Bis(trimethylphosphine)‐Diborane(4) as a Reagent for Borane Framework Expansion.
Authors: JOCK C. P. , KAMEDA M. , KODAMA G.
Published: May 2016

The diborane(4) adduct (II) reacts readily with the phosphine‐tetraborane(8) (I) and slowly with the trimethyl phosphine‐pentaborane(9) (III) with borane expansion to give the phosphine‐borane adducts (III) and (V), respectively, and BH3·PMe3 (IV).
ChemInform Abstract: Dicobalt Hexacarbonyl Complex of Propynals in Organic Synthesis: Strong E‐Enolate:threo/Z‐Enolate:erythro‐Correlation in the Aldol Reaction of Cobalt‐Complexed Propynals.
Authors: MUKAI C. , NAGAMI K. , HANAOKA M.
Published: May 2016

When the dicobalt hexacarbonyl complexes (I) or (V) are coupled with the lithium enolates (II), satisfactory stereoselectivities are achieved, producing the β‐hydroxy ketones (III) or (VI) after decomplexation with up to 96% diastereomeric excess.
ChemInform Abstract: Phosphorus Compounds with Unusual Coordination. Part 35. Ethylidynephosphane ‐ Generation and Characterization by Means of 1,3‐Dipolar Cycloaddition.
Authors: HERMESDORF M. , BIRKEL M. , HEYDT H. , REGITZ M. , BINGER P.
Published: May 2016

Reaction of the ethylidynephosphane (II), obtained by flash pyrolysis of the dichloroethylphosphane (I), with the diazoalkanes (III) or the azides (V) yields the diazaphospholes (IV) and the triazaphospholes (VI) respectively.
ChemInform Abstract: Reactions of Sodium Pentacarbonylrhenate(1‐) with Activated Acetylenes. Formation of Rhenacyclobutenone Complexes.
Authors: PADOLIK L. L. , GALLUCCI J. , WOJCICKI A.
Published: May 2016

The title reaction forms the products (III).
ChemInform Abstract: A Novel Synthesis of the 1β‐Methylcarbapenem Key Intermediate Employing the (2 + 2)Cycloaddition Reaction of Chlorosulfonyl Isocyanate with a 4H‐1,3‐Dioxin Derivative.
Authors: ITO Y. , KOBAYASHI Y. , TERASHIMA S.
Published: May 2016

The unsaturated cyclic acetal (IV), derived from the hydroxy ester (I) and the aldehyde (II), undergoes cycloaddition reaction with chlorosulfonyl isocyanate (V), followed by reductive work‐up, forming mainly the fused β‐lactam (VI).
ChemInform Abstract: The Carbon Monoxide as a Building Block for Alkenylketone Compounds
Authors: ALT H. G.
Published: May 2016

Review: (coordinated in complexes of Cr, Mo, and W; 51 refs.
ChemInform Abstract: Lanthanum‐Magnesium and Lanthanum‐Manganese Donor‐Acceptor‐Codoped Semiconducting Barium Titanate.
Authors: TING C.‐J. , PENG C.‐J. , LU H.‐Y. , WU S.‐T.
Published: May 2016

The positive temp. coefficient of resistivity (PTCR) and room temp. conductivity of BaTiO3 powders doped with La‐Mn or La‐Mg are studied as a function of the doping levels.
ChemInform Abstract: An NMR Study of the Mode of Incorporation of Ethene into Propene in the Fischer‐Tropsch Reaction over Cobalt.
Authors: PERCY L. T. , WALTER R. I.
Published: May 2016

The C3 fraction of the Fischer‐Tropsch reaction shown in the scheme is composed of (III), all of its C‐isotopomers, and propanes.
ChemInform Abstract: Mitsunobu Reactions of N‐Alkyl and N‐Acyl Sulfonamides. An Efficient Route to Protected Amines.
Authors: HENRY J. R. , MARCIN L. R. , MCINTOSH M. C. , SCOLA P. M. , HARRIS G. D. JUN. , WEINREB S. M.
Published: May 2016

The primary and secondary alcohols (I) react with N‐methyl (II) and N‐Boc p‐toluenesulfonamide (VI) to give the N‐protected amines (IV) and (VII) under Mitsunobu conditions.
ChemInform Abstract: Alkylation of 2‐Azaallyl Anions. A Versatile Primary Amine Synthesis.
Authors: HORNBACK J. M. , MURUGAVERL B.
Published: May 2016

The imines (III), obtained from the ketone (I) and the amines (II), react consecutively with LDA and the alkyl halides (IV) to form the substituted imines (V).
ChemInform Abstract: Unusual Formation Reaction of Dienoic Amides.
Authors: GRIDNEV I. D. , BALENKOVA E. S.
Published: May 2016

The complex formed between acetyl tetrafluoroborate (I) and acetonitrile (II) transfers an acetyl cation to cyclohexene (III) to give an unstable protonated β,γ‐unsaturated ketone, whose deprotonation yields the observed unsaturated ketone (IV).
ChemInform Abstract: N‐(2,2,2‐Trichloroethylidene)arenesulfonamides and N‐(2,2,2‐Trichloroethylidene)ethoxycarboxamides in Reactions with Amines.
Authors: MIRSKOVA A. N. , LEVKOVSKAYA G. G. , BRYUZGIN A. A. , DROZDOVA T. I. , KALIKHMAN I. D. , VORONKOV M. G.
Published: May 2016

The reactivity of the title compounds, i.e. the highly electrophilic sulfonamides (I) and (VI) and carboxamides (VIII), is investigated.
ChemInform Abstract: Reduction of Isomeric Benzenedicarboxylic Acid Chlorides with Triethylsilane.
Authors: VORONKOV M. G. , PUKHNAREVICH V. B. , BURNASHOVA T. D. , USHAKOVA N. I. , KOVAL'SKAYA N. B. , TSYKHANSKAYA I. I.
Published: May 2016

Phthaloyl chloride (I) is coupled with triethylsilane (II) to give phthalide (III) and triethylchlorosilane (IV).
ChemInform Abstract: Novel Synthesis of Cyclohexa‐2,4‐dien‐1‐ones. Its Use in a Partial Synthesis of the Chromophore Portion of Phomenoic Acid.
Authors: TOPGI R. S.
Published: May 2016

Metalation of the phenols (I) with n‐butyllithium and subsequent reaction with the chloromethyl ethers or thioethers (II) yields the cyclohexadienones (III).
ChemInform Abstract: 2‐Morpholinobutadienes as Synthon for the Regioselective Preparation of 3‐Morpholino‐1,4‐pentadienes and β‐Hydroxyvinyl Ketones.
Authors: BARLUENGA J. , AZNAR F. , CABAL P. , VALDES C.
Published: May 2016

The 2‐morpholinyl‐1,3‐butadienes (I) react with the aldehydes (II) in the presence of magnesium (or zinc) dihalides to give the 1,4‐dienes (III).
ChemInform Abstract: Synthesis of Substituted 1,4‐Thiomorpholine 1,1‐Dioxides.
Authors: REDDY M. V. R. , VIJAYALAKSHMI S. , REDDY P. V. R. , REDDY S. , REDDY D. B.
Published: May 2016

No reports have been known about the preparation of title compounds of type (VI) and (IX) until now.
ChemInform Abstract: General Method for the Synthesis of α‐Phosphorylated Cyclopentanones.
Authors: TOLMACHEV A. A. , MOROZOVA L. N. , KOSTYUK A. N. , DAMPEKA R. D. , KOZLOV E. S. , PINCHUK A. M.
Published: May 2016

The enamine (I) reacts with the arylphosphonous dichloride (II) to give the corresponding dicyclopentenylphosphine which is transformed into the phosphine sulfides (III) and (IV) or the phosphine oxide (V).
ChemInform Abstract: Trichloro(Triorganyl)phosphazosulfonylmonobenzo‐15‐crown‐5.
Authors: MARKOVSKII L. N. , RUDKEVICH D. M. , KAL'CHENKO V. I.
Published: May 2016

Consecutive treatment of the sulfonamide (I) with chlorine and alkali gives the chloroamide (II) which is coupled with phosphorus trichloride (IIIa), triphenyl phosphite (IIIb), or triphenylphosphine (IIIc), producing the phosphorimidic trichloride (IVa), the phosphorimidate (IVb), or the phosphine imide (IVc).
ChemInform Abstract: Stereocontrolled Synthesis of 4‐ and 9‐Ethyl‐2‐azabicyclo(3.3.1)nonan‐7‐ones via 2‐Cyanopiperidines.
Authors: BONJOCH J. , CASAMITJANA N. , GRACIA J. , BOSCH J.
Published: May 2016

The piperidine (I) is cyanated via the formation of an intermediate N‐oxide and an iminium ion to yield the regioisomeric nitriles (III) and (IV).
ChemInform Abstract: Electrochemical Properties of a Periodate Complex of Ag(III),
Authors: LIU Z. , GU D.
Published: May 2016

(Ag(IO6)2)7‐, are studied in basic solution using Pt microelectrodes.
ChemInform Abstract: Preparation of WCx Thin Films by RF Sputtering and Their Electrocatalytic Property for Anodic Methanol Oxidation.
Authors: MACHIDA K. , ENYO M.
Published: May 2016

WCx thin films are prepared on Ti and Ta foil substrates by normal or reactive RF sputtering using either a WC or a W target in an argon or Ar‐CH4 atmosphere, respectively.
ChemInform Abstract: Investigation of Magnesium Corrosion in Aerated Sodium Sulfate Solution by Electrochemical Impedance Spectroscopy.
Authors: PEBERE N. , RIERA C. , DABOSI F.
Published: May 2016

In order to gain more understanding of the corrosion of Mg, steady‐state (I‐E curves) and transient (impedance diagrams) electrochemical measurements are performed in 0.5 M Na2SO4.
ChemInform Abstract: Distribution of Molybdenum Oxidation States in Reduced Mo/TiO2 Catalysts: Correlation with Benzene Hydrogenation Activity.
Authors: QUINCY R. B. , HOUALLA M. , PROCTOR A. , HERCULES D. M.
Published: May 2016

At 5 wt% MoO3/TiO2 catalyst is reduced in H2 at various temp. in the range 300‐650 °C and the changes in molybdenum oxidation states as a function of the extent of reduction are studied by gravimetric analysis and ESCA.
ChemInform Abstract: The First Tetraferrate(III), K14(Fe4O13)
Authors: MUELLER H.‐P. + , HOPPE R.
Published: May 2016

is prepared according to the scheme.
ChemInform Abstract: Synthetic Methods and Reactions. Part 149. Reduction of Carbonyl Compounds to Hydrocarbons with Triisopropyl Phosphite: An Inexpensive New Reducing Agent.
Authors: OLAH G. A. , WU A.
Published: May 2016

Treatment of the aldehydes and ketones (I) with triisopropyl phosphite results in reduction to yield the hydrocarbons (II).
ChemInform Abstract: The Chemoselective Reduction of Fluorinated Halo Esters with Sodium Borohydride. Fluorinated Haloalkanols and Their (Meth)Acrylates.
Authors: PALETA O. , DANDA A. , STEPAN L. , KVICALA J. , DEDEK V.
Published: May 2016

The synthesis and reaction of several fluorinated halo esters (IV) are described.
ChemInform Abstract: Allylic Chlorination of Isoprenoid Olefins Using Sulfuryl Chloride.
Authors: BULLIARD M. , BALME G. , GORE J.
Published: May 2016

The allylic chlorination of isoprenoid olefins such as (Ia) ‐ (Id) yields the secondary chlorides (IIa) ‐ (IId) after allylic rearrangement.
ChemInform Abstract: Electron Transfer Processes. Part 47. Reactions of Organometallic Reagents Involving Electron Transfer.
Authors: RUSSELL G. A. , BAIK W. , NGOVIWATCHAI P. , KIM B. H.
Published: May 2016

A wide range of reactions is studied, e.g., the photoreaction of tBu‐HgCl (V) with substrates such as (I) and (III) to give products (II) and (IV) in low yields in the absence of NaI, but high yields are obtained in the presence of 2 equiv. NaI.
ChemInform Abstract: Synthesis and Chemical Resolution of a Novel Class of Rigid 1‐(1‐Phenylcyclohexyl)piperidine (PCP) Analogues.
Authors: KOZIKOWSKI A. P. , PANG Y.‐P.
Published: May 2016

The tetrahydrofluorenecarboxylic acid (V), prepared from indene (I) by carboxylation and Diels‐Alder reaction with 1,3‐butadiene (IV), is converted into the enantiomeric amines (X) and ent‐(X) which are optically resolved by means of tartaric acid.
ChemInform Abstract: Synthesis of Benzisothiazoles by Oxidative Ring Contraction of 2‐Aryl‐4H‐ and 4‐Aryl‐2H‐1,3‐benzothiazines.
Authors: SZABO J. , SZUECS E. + , FODOR L. , KATOCS A. , BERNATH G. , SOHAR P.
Published: May 2016

As outlined in the reaction scheme, oxidation of 2‐aryl‐4H‐1,3‐benzothiazines, e.g. (I), depends significantly on the oxidant used.
ChemInform Abstract: Indolo(2,1‐a)isoquinolines. Syntheses, Steroid Hormone Receptor Binding Affinities, and Cytostatic Activity.
Authors: AMBROS R. , SCHNEIDER M. R. , VON ANGERER S.
Published: May 2016

Substituted phenylalkylamines such as (I) are coupled with bromophenylacetates, e.g. (II), to form the corresponding amides, e.g. (III).
ChemInform Abstract: New Quinoxaline and Pyrimido(4,5‐b)quinoxaline Derivatives. Potential Antihypertensive and Blood Platelet Antiaggregating Agents.
Authors: MONGE A. , PALOP J. A. , URBASOS I. , FERNANDEZ‐ALVAREZ E.
Published: May 2016

The title compounds (II), (IV), (V), (VII), (IX) and (X) are screened for their inhibitory activity of blood platelet aggregation and for their antihypertensive activity.
ChemInform Abstract: An o‐Xylyl Diol‐Protecting Group.
Authors: POSS A. J. , SMYTH M. S.
Published: May 2016

The diols (IIa) ‐ (IIc), (IV), and (VI) are protected by twofold etherification with o‐xylylene dibromide (I) to produce moderate yields of the benzodioxocins (IIIa) ‐ (IIIc), (V), or (VII).
ChemInform Abstract: Chemistry of Boron. Part 201. Boration of Lactams and Ureas by an Amino‐Imino‐Borane.
Authors: GEISBERGER G. , NEUKIRCHINGER K. , NOETH H. +
Published: May 2016

The imino(piperidino)borane (I) reacts with pyrrolidinone (II), with 2,5‐diketopiperazine or with urea to give the mono‐, di‐ and O,N,N'‐triborated compounds (III), (IV) (yield 64%), and (V) (86%), respectively.
ChemInform Abstract: Antiferromagnetic Complexes with Metal‐Metal Bonds. Part 21. Reactions of Cp2Cr2(μ‐OCMe3)2 with Chalcogens (S, Se, Te). Syntheses and Molecular Structures of Cp2Cr2(μ‐OCMe3)2(μ‐S4) and Cp2Cr2(μ‐OCMe3)2(μ‐Se).
Authors: NEFEDOV S. E. , PASYNSKII A. A. , EREMENKO I. L. , ORAZSAKHATOV B. , NOVOTORTSEV V. M. , ELLERT O. G. , YANOVSKII A. I. , STRUCHKOV YU. T.
Published: May 2016

The title reactions lead to the μ‐S4 derivative (III) (space group P41212, Z = 8), the μ‐Se complex (IVa) (P1, Z=2; yield given in g), and its Te analogue (IVb) (no yield given).
ChemInform Abstract: Synthesis and Characterization of Cobalt(III) Complexes Containing α‐Diamine and Carbinolamine Derived from α‐Aminomalonate and Ethylenediamine.
Authors: KOJIMA T. , USUI T. , TANASE T. , YASHIRO M. , YOSHIKAWA S. , KURODA R. , YANO S. , HIDAI M.
Published: May 2016

The α‐aminomalonate ion undergoes a C‐N bond formation with (I) affording in MeOH under air a mixture of (III), (IV) and (V) with no selectivity.
ChemInform Abstract: Nickelapnicogencubanes.
Authors: SCHERER O. J. , BRAUN J. , WOLMERSHAEUSER G. +
Published: May 2016

The thermolysis of (I) and (VIII) in the presence of As4 give products analogous to (III) and (IX).
ChemInform Abstract: Mononuclear, Dinuclear, and Trinuclear Ruthenium(II) Complexes of a Tris(bipyridine) Bridging Ligand: Syntheses, Absorption Spectra, Redox Potentials, and Photophysical Properties.
Authors: DE COLA L. , BELSER P. , EBMEYER F. , BARIGELLETTI F. , VOEGTLE F. + , VON ZELEWSKY A. , BALZANI V.
Published: May 2016

The ligand (I), previously used to prepare a hemicaged Ru(II) complex, is now used to bind one, two or three (Ru(bipy)2)2+ units.
ChemInform Abstract: Regio‐ and Stereoselective Transformation of Glycosides to Aminoglycosides: Practical Synthesis of Amino Sugars, 4‐Amino‐4‐deoxy‐D‐galactose, 4‐Amino‐4‐deoxy‐L‐arabinose, 3‐Amino‐3‐deoxy‐D‐allose, 3‐Amino‐3‐deoxy‐D‐glucose, 3‐Amino‐3‐deoxy‐D‐ribose, 3‐Amino‐3‐deoxy‐D‐xylose, 2‐Amino‐2‐deoxy‐D‐mannose, and 5‐Amino‐5‐deoxy‐D‐glucose (Nojirimycin).
Authors: TSUDA Y. , OKUNO Y. , IWAKI M. , KANEMITSU K.
Published: May 2016

Eight oxoglycosides, e.g. (Ia) and (Ib), are converted into the corresponding oxime ethers, e.g. (III).
ChemInform Abstract: 1‐(1‐Pyrrolin‐2‐yl)‐β‐carbolines. Synthesis of Eudistomins H, I, and P.
Authors: HINO T. , LAI Z. , SEKI H. , HARA R. , KURAMOCHI T. , NAKAGAWA M.
Published: May 2016

The tryptamines (I) are coupled with the N‐protected L‐proline (II) and subsequently cyclized to give the dihydrocarbolines (III).
ChemInform Abstract: Purines. Part 34. 3‐Methyladenosine and 3‐Methyl‐2′‐deoxyadenosine: Their Synthesis, Glycosidic Hydrolysis, and Ring Fission.
Authors: FUJII T. , SAITO T. , NAKASAKA T.
Published: May 2016

The methyladenosines (VII) are prepared from the adenosine N‐oxides (I) via ring fission, methylation, and recyclization.
ChemInform Abstract: A Synthesis of Biotin Based on Cycloaddition of a Thiocarbonyl Ylide.
Authors: ALCAZAR V. , TAPIA I. , MORAN J. R.
Published: May 2016

Key steps in the synthesis of the biotin precursor (IX) are the reaction of the dithioester (I) with CH2N2 (II) which leads to the corresponding S‐methylide and the subsequent cycloaddition with the acid chloride (III).
ChemInform Abstract: Cephalosporins to Carbapenems: 1‐Oxygenated Carbapenems and Carbapenams.
Authors: ROSATI R. L. , KAPILI L. V. , MORRISSEY P. , RETSEMA J. A.
Published: May 2016

Photo‐induced Wolff rearrangement of diazocephem oxides such as (I) yields directly 1‐oxocarbapen‐2‐ems such as (II).
ChemInform Abstract: Crystallographic Orientation Relations Between the Phases in the Reaction Ca2(P4O12)·4 H2O → β‐(Ca2(PO3)4)x.
Authors: SCHNEIDER M. , JOST K. H.
Published: May 2016

The dehydration of monoclinic Ca2(P4O12)·4 H2O (space group P21/n) proceeds in several crystallographically oriented steps via the following intermediate phases: Ca2(P4O12)·H2O (formed at 120 °C, triclinic, P1 or P1), Ca2(P4O12) (220 °C, triclinic, P1 or P1), an X‐ray amorphous phase (460 °C), X‐(Ca(PO3)2)x (520 °C), β‐(Ca2(PO3)4)x (540‐620 °C, monoclinic, P21/c).
ChemInform Abstract: ESR and X‐Ray Diffraction Studies of Copper(II)‐Ion‐Doped Zr4‐Pillared Montmorillonite Clay.
Authors: KUKKADAPU R. K. , KEVAN L.
Published: May 2016

Zr4‐pillared montmorillonites (Zr‐PM) are prepared either by stirring a suspension of montmorillonite in an aqueous solution of ZrOCl2·8 H2O for 2 h at room temp. (Zr‐PM I) or by refluxing such a suspension for 1 h (Zr‐PM II).
ChemInform Abstract: A Practical Method for the Separation of E/Z‐Isomeric Silyl Enol Ethers by Kinetic Resolution.
Authors: HIPPELI C. , BASSO N. , DAMMAST F. , REISSIG H.‐U.
Published: May 2016

Since α‐nitrosostyrene, prepared from α‐chloroacetophenone oxime (III) and sodium carbonate, forms the cycloadducts (IV) with the E‐isomers (II) of silyl enol ethers much faster than with the Z‐isomers (I), the unreacted Z‐isomers (I) can be separated.
ChemInform Abstract: Lithiation of ortho‐Tolyl Tetramethylphosphorodiamidates: A Facile Synthesis of 2‐Arylbenzofurans Including Neolignan, Carinatin.
Authors: DATE M. , KAWANISHI K. , HORI T. , WATANABE M. , FURUKAWA S.
Published: May 2016

Aryl phosphorodiamidates are used as starting materials for the synthesis of 2‐arylbenzofurans.
ChemInform Abstract: Asymmetric Synthesis of trans‐(2R,5R)‐Bis(benzyloxymethyl)pyrrolidine.
Authors: MARZI M. , MISITI D.
Published: May 2016

The thionocarbonate (III), derived from the diisopropylidenemannitol (I), is degraded and then hydrogenated to form the dideoxy derivative (V).
ChemInform Abstract: Synthesis and Antimicrobial Activity of Some New 2,5‐Imidazolidinediones.
Authors: MOHAMED A. M. , EL‐SHARIEF A. M. SH. , AMMAR Y. A. , ALY M. M.
Published: May 2016

Treatment of 1,3‐diphenyl‐4‐thiono‐2,5‐imidazolidinedione (III), obtained by cyclocondensation of cyanothioformanilide (I) with phenyl isocyanate (II), with the primary amines and hydrazines (IV), or the o‐phenylenediamines (VI) leads to the formation of the 4‐amino‐2,5‐imidazolinediones (V) and the imidazo(4,5‐b)quinoxalinones (VII) respectively.
ChemInform Abstract: p‐Chlorobenzyl Derivatives of Piperidine, Pyridine, and Indolizine.
Authors: PROSTAKOV N. S. , RYABOVA N. A. , KRAPIVKO A. P. , VARLAMOV A. V.
Published: May 2016

4‐Chlorobenzyl chloride (II) reacts via its Grignard compound with the piperidone (I) to give the carbinol (III) which is dehydrated to yield the tetrahydropyridines (IV) and (V).
ChemInform Abstract: Pyrimidines. Part 64. Novel Reaction of Uracil Derivatives Possessing Electron‐Withdrawing Groups at the 5‐Position with Amines: Exchange Reaction Between the N1‐Portion of Uracils and Amines.
Authors: HIROTA K. , KITADE Y. , SAJIKI H. , MAKI Y. , YOGO M.
Published: May 2016

5‐Cyanouracils are used as starting products as well (total 19 examples).
ChemInform Abstract: Brominated Bis(indole) Alkaloids from the Marine Sponge Hexadella sp.
Authors: MORRIS S. A. , ANDERSEN R. J.
Published: May 2016

Three new brominated bis(indole) alkaloids, topsentin C (I), dragmacidon A (IIa) and dragmacidon B (IIb), are isolated from the Pacific Ocean sponge Hexadella sp.
ChemInform Abstract: C‐Nucleosides. Part 1. Preparation of Tiazofurin (X) and N‐Substituted Tiazofurins from Benzyl (2′,3′,5′‐Tri‐O‐benzoyl‐β‐D‐ribofuranosyl)penicillinate.
Authors: HUMBER D. C. , MULHOLLAND K. R. , STOODLEY R. J.
Published: May 2016

The substituted tiazofurin (XI) is prepared similarly to (VIII) from (IV).
ChemInform Abstract: ′Preferential Spontaneous Resolution′ of p‐Anisyl α‐Methylbenzyl Ketone.
Authors: CHANDRASEKHAR S. , RAVINDRANATH M.
Published: May 2016

The enantiomers of the title compound (I) are obtained with up to 72% e.e.