bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Electrophilic and Nucleophilic Approaches to the Synthesis of 3‐Fluorodiazepam.
Authors: LUXEN A. , BARRIO J. R. , SATYAMURTHY N. , BIDA G. T. , PHELPS M. E. 
Published: May 2016

AbstractElectrophilic fluorination of diazepam (Ia) with elemental fluorine or acetyl hypofluorite which is generated in gas phase gives the 3‐fluoro analogue (Ib).
ChemInform Abstract: (E)/(Z)‐Isomerization of 1‐Boryl‐2‐stannyl‐1‐alkenes.
Authors: WRACKMEYER B. , ABU‐ORABI S. T. 
Published: May 2016

AbstractExposure of the 9‐borabicyclodecanes (I) to daylight leads, after 30 days, to nearly quantitative formation of the desired Z‐isomers (II).
ChemInform Abstract: Regiospecific Synthesis of Aromatic Compounds via Organometallic Intermediates. Part 5. Substituted Perfluoroalkyl Ether Benzenes.
Authors: EAPEN K. C. , SABA C. S. , TAMBORSKI C. 
Published: May 2016

AbstractThe dilithiobenzene derivative (II) is synthesized from the corresponding dibromobenzenes (I) by a lithium bromine exchange reaction.
ChemInform Abstract: Cleavage of the Si‐Ph Bond by Amino Alcohols.
Authors: URTANE I. P. , ZELCHAN G. I. , LIEPIN'SH E. E. , KUPCHE E. L. , LUKEVITS E. 
Published: May 2016

AbstractReaction of the diphenylsilane (I) with triethanolamine (II) in the presence of catalytic amounts of sodium methoxide leads to the cleavage of one Si‐Ph bond in (I) and the formation of the phenylsilatrane (III).
ChemInform Abstract: Reaction of O,S‐Diethyl Phenylthiophosphonite with Nitrilimines.
Authors: NAMESTNIKOV V. I. , TAMM L. A. , TRISHIN YU. G. , CHISTOKLETOV V. N. 
Published: May 2016

AbstractThe thiophosphite (II) reacts with nitrilimines, prepared in situ from the carboxylic chloride hydrazonides (III), to give the thiophosphinates (IV).
ChemInform Abstract: Particularities of the Electrophilic Chlorination of Aromatic Phosphorus Compounds.
Authors: RASKINA A. D. , MOTSAREV G. V. , INSHAKOVA V. T. , KOLBASOV V. I. , SUVOROV B. A. 
Published: May 2016

AbstractChlorination of phenyldichlorophosphine (II) at 20°C leads to the formation of phenyltetrachlorophosphorane (I).
ChemInform Abstract: A Facile and Efficient Preparation of the Unknown Primary β‐Enaminophosphines. Synthesis of the First 1,3,4(λ5)‐Diazaphosphorines.
Authors: BARLUENGA J. , LOPEZ F. , PALACIOS F. 
Published: May 2016

AbstractThe phosphinimines (I) or (III) are reduced with lithium alanate to form the phosphines (II) or (V).
ChemInform Abstract: Diastereoselective Cr(CO)3 Complexation of Arene Compounds Mediated by a Remote Hydroxyl Group.
Authors: UEMURA M. , MINAMI T. , HAYASHI Y. 
Published: May 2016

AbstractThe ligand exchange reactions of (naphthalene)Cr(CO)3 with the o‐alkoxyphenyl derivatives (I) having two functional groups in the acyclic part, an acetal at the C‐1 position, and the OH group at the C‐3 position, occurs with diastereoselectivity.
ChemInform Abstract: Metal‐Induced Cyclotrimerization of a λ3‐Phosphaalkyne: Formation of a Mo‐Complexed 1,3,5‐Triphosphabenzene.
Authors: BARRON A. R. , COWLEY A. H. 
Published: May 2016

AbstractThe η6‐cycloheptatriene‐Mo complex (I) reacts with an excess of tert. butylphosphaacetylene (II) to give the η6‐triphosphabenzene‐Mo complex (III).
ChemInform Abstract: Coordination of Ethylene to a Complex with M‐M Triple Bonding: Bis(η2‐ethylene)hexakis(neopentyloxy)ditungsten.
Authors: CHISHOLM M. H. , HAMPDEN‐SMITH M. 
Published: May 2016

AbstractThe addition of ethylene (II) to the complex (I) yields the 1:2 Lewis acid‐base adduct (III) (no yield given).
ChemInform Abstract: (2,2,8,8‐Tetramethyl‐5‐oxa‐4,6‐diphospha‐3,6‐nonadiene)tetrakis(dicarbonyl‐(methylcyclopentadienyl)manganese), the First Complexed Bis(phosphavinyl)ether.
Authors: ZIEGLER M. L. , BALLES R. , NUBER B. , BECKER G. , SCHMIDT H. , KANELLAKOPULOS B. , POWIETZKA B. 
Published: May 2016

AbstractThe title complex (III) is obtained as shown in the reaction of the phosphaalkyne (II).
ChemInform Abstract: The Mechanism of Substitution Reactions of (LRe(NO)(CO)(CH3))+ in Acidic Solution and the Structure of ((LRe(NO)(CO))2(μ‐CH2OCH2))I2 (L: 1,4,7‐Triazacyclononane).
Authors: POMP C. , DUDDECK H. , WIEGHARDT K. , NUBER B. , WEISS J. 
Published: May 2016

AbstractThe complex (IIIa) is converted into (IIIb) by recrystallization from H2O followed by addition of (1S)‐(+)‐(IV).
ChemInform Abstract: Synthesis, Structure, and Reactivity of Transition‐Metal/Main‐Group‐Metal Bridging Carboxylate Complexes of the Formula (η5‐C5H5)Re(NO)(PPh3)(CO2MLn) (M: Li, K, Ge, Sn, Pb).
Authors: SENN D. R. , GLADYSZ J. A. , EMERSON K. , LARSEN R. D. 
Published: May 2016

AbstractThe rhenium carboxylic acid complex (I), in which a CO2 moiety spans a transition metal and a hydrogen atom, serves as starting material for the synthesis of the title complexes as shown in the scheme.
ChemInform Abstract: Transition Metal Phosphido Complexes. Part 13. P‐Functional Phosphido‐Bridged Heterobimetallic Complexes with and without a Metal‐Metal Bond; P(SiMe3)2‐Bridged cp(CO)xFe Derivatives.
Authors: SCHAEFER H. + , LESKE W. 
Published: May 2016

AbstractThe Fe complex (I) reacts with carbonyl nitrosyl complexes (II) and with (IV) (obtained in situ by CO‐THF exchange) to give the phosphido‐bridged open‐chain compounds (III), (Va), (Vb) and (Vc).
ChemInform Abstract: Complexes with a Pentacoordinated Carbon Atom. Part 4. Tricarbonyl(η5‐2,3‐dihydro‐1H‐1,3‐diborole)iron and Bis((tricarbonyliron)‐μ‐(η5‐2,3‐dihydro‐1H‐1,3‐diborol‐2‐yl))iron Complexes.
Authors: SIEBERT W. , BUECHNER D. + , PRITZKOW H. , WADEPOHL H. , GREVELS F.‐W. 
Published: May 2016

AbstractThe iron complex (II) reacts with the diborole derivative (Ia) to yield the complex (III), whereas with (Ib) the paramagnetic tetradecker complex (IVa) is formed.
ChemInform Abstract: Copper(II) Acetate as a Building Block of Heterometallic Dinuclear Complexes with a Cu‐Mo and Cu‐W Bond. The X‐Ray Crystal Structures of C5H5(CO)2Mo(μ‐O2CMe)2Cu(4‐MeC5H4N) and C5H5W(CO)3OC(O)Me.
Authors: WERNER H. , ROLL J. , ZOLK R. , THOMETZEK P. , LINSE K. , ZIEGLER M. L. 
Published: May 2016

AbstractThe preparations and reactivity of the heterometallic dinuclear complexes (I) are described.
ChemInform Abstract: The Use of ortho‐Cumidine as a Dyestuff Intermediate. Part 1. Monoazo and Disazo Solvent Dyes.
Authors: AYYANGAR N. R. , JADHAV G. S. , JOSHI S. V. , SRINIVASAN K. V. 
Published: May 2016

AbstractStarting with o‐cumidine (II) the azo dyes (III) and (IV) are prepared by diazotization and coupling with the phenols (Ib), (Ic), and (Id), or with excess (II).
ChemInform Abstract: 15N‐CPMAS‐NMR Investigations of N‐H Tautomerism in Crystalline Porphin and Porphycene.
Authors: WEHRLE B. , LIMBACH H.‐H. , KOECHER M. + , ERMER O. , VOGEL E. 
Published: May 2016

AbstractThe 9.12‐MHz‐15N‐CPMAS‐NMR spectrum of porphin (I) reveals one sharp singlet (δ = 161) at 356 K, but two singlets (δ = 107 for ‐NH‐, δ = 215 for =N‐) at 192 K indicating a rapid proton transfer at room temp. which is frozen in at low temperature.
ChemInform Abstract: Synthesis of (2R,3S,4R)‐3,4‐Dihydroxyproline from D‐Ribonolactone: An Approach to the Synthesis of Polyfunctionalized D‐Amino Acids from Sugar Lactones. X‐Ray Molecular Structures of 2‐Azido‐3,4‐O‐(R)‐benzylidene‐2‐deoxy‐D‐ribono‐1,5‐lactone, 2‐Azido‐2‐deoxy‐D‐ribono‐1,4‐lactone, and (2R,3S,3R)‐3,4‐Dihydroxyproline.
Authors: BAIRD P. D. , DHO J. C. , FLEET G. W. J. , PEACH J. M. , PROUT K. , SMITH P. W. 
Published: May 2016

AbstractThe key step in the transformation of the title lactone (I) to the amino acid (VIII) is the displacement of the triflate group in compound (IIIb) by an azide group, which occurs with retention of the configuration (for (IIIb) no yields given).
ChemInform Abstract: Stereocontrolled Construction of Octahydroquinolizines, Octahydroindolizines, Hexahydrobenzo(a)quinolizines, and an Octahydroindolo(2,3‐a)quinolizine by an Intramolecular Double Michael Reaction: Synthesis of (.+‐.)‐Epilupinine.
Authors: IHARA M. , KIRIHARA T. , KAWAGUCHI A. , TSURUTA M. , FUKUMOTO K. , KAMETANI T. 
Published: May 2016

AbstractThe readily available enamide esters (I), (III), (V) or (VII) are converted to the heterocyclic ring systems (II), (IV), (VI) or (VIII), which may act as precursors for alkaloid syntheses.
ChemInform Abstract: Thromboxane A2 Analogues from 8‐Oxabicyclo(3.2.1)oct‐6‐en‐3‐ones.
Authors: BOWERS K. G. , MANN J. , WALSH E. B. , HOWARTH O. W. 
Published: May 2016

AbstractThe enone (I) undergoes bromination and subsequent cycloaddition with the furan (II) to give the adduct (III), which is converted to a separable mixture of the iodoethers (IV) and (V).
ChemInform Abstract: The Preparation of 9‐Oxo‐10‐oxaprostanoids by the Conjugate Addition of (E)‐1‐(Phenylthio)oct‐2‐enyllithium to γ‐Crotonolactone and the Direct Alkylation of the Derived Enolate with Methyl 7‐Bromohept‐5‐ynoate and Related Electrophiles.
Authors: HAYNES R. K. , SCHOBER P. A. 
Published: May 2016

AbstractThe title reaction between the compounds (I), (II) and (III) yields mixtures of the syn‐ and anti‐oxaprostenynoates (IV) and (V).
ChemInform Abstract: Prostaglandins and Prostaglandin Intermediates. Part 19. The Aldol Reaction of Substituted Cyclopentane Carbaldehydes with 2‐Heptanone. A Novel Approach to the Construction of the Alkyl Side Chain of Prostaglandins.
Authors: MAHRWALD R. , SCHICK H. , SCHWARZ S. 
Published: May 2016

AbstractThe aldol reaction of cyclopentane carbaldehydes (I) and (VII) with 2‐heptanone (II) yields the β‐hydroxy ketones (III) and (VIII), respectively.
ChemInform Abstract: Partial Synthesis of Nikkomycins Bx, Kx and Unnatural Stereoisomers and Structural Analogues.
Authors: HAHN H. , HEITSCH H. , RATHMANN R. , ZIMMERMANN G. , BORMANN C. , ZAEHNER H. + , KOENIG W. A. + 
Published: May 2016

AbstractNikkomycin Bx (VIIIa) and its stereoisomer (VIIIb) are synthesized starting from the amino acids (I) via the intermediates (IV) and (VII).
ChemInform Abstract: Free‐Radical Anellation in the Synthesis of Bicyclic β‐Lactams. Part 6. Synthesis of tert‐Butyl 2‐Benzylidene‐1‐carbapenam‐3‐carboxylate.
Authors: BACHI M. D. , DE MESMAEKER A. , STEVENART‐DE MESMAEKER N. 
Published: May 2016

AbstractThe protected phenylpropynyl‐β‐lactam (IV) is prepared from the azetidinone (I) by phenylation and N‐protection.
ChemInform Abstract: The Corrosion Behavior of Amorphous Nickel Base Alloys in a Hot Concentrated Phosphoric Acid.
Authors: MITSUHASHI A. , ASAMI K. , KAWASHIMA A. , HASHIMOTO K. 
Published: May 2016

AbstractInvestigations of the corrosion behavior of more than 50 melt‐spun amorphous nickel base alloys in an 87 wt% H3PO4 solution at 433 K (most aggressive among hot conc.
ChemInform Abstract: Laser‐Processed Corrosion‐Resistant Amorphous Ni‐Cr‐P‐B Surface Alloys on a Mild Steel.
Authors: YOSHIOKA H. , ASAMI K. , KAWASHIMA A. , HASHIMOTO K. 
Published: May 2016

AbstractAn attempt is made to prepare extremely corrosion resistant amorphous Ni‐Cr‐P‐B alloys on a crystalline bulk mild steel by laser surface melting and subsequent self‐quenching.
ChemInform Abstract: Rate and Oxygen Activity Oscillations During Hydrogen Oxidation on Polycrystalline Nickel.
Authors: ENG D. , STOUKIDES M. , MCNALLY T. 
Published: May 2016

AbstractThe catalytic oxidation of hydrogen on Ni films supported on yttria stabilized zirconia has been studied in the temp. range 280‐400 °C. Solid electrolyte potentiometry (SEP) is used to monitor the thermodynamic activity of oxygen adsorbed on the catalyst surface.
ChemInform Abstract: Study of the Carburization of an Iron Catalyst During the Fischer‐Tropsch Synthesis: Influence on Its Catalytic Activity.
Authors: PIJOLAT M. , PERRICHON V. , BUSSIERE P. 
Published: May 2016

AbstractThe fast transformation of an Al2O3‐supported iron catalyst into Fe2+xC during the H2‐CO reaction is followed by in situ Mößbauer spectroscopy.
ChemInform Abstract: Two Novel Antimony Chalcogenide Compounds and Their Moessbauer Investigation.
Authors: NEMES‐VETESSY ZS. , BURGER K. , VERTES A. , AFANASOV M. I. , MEHNER H. 
Published: May 2016

AbstractIn the course of attempts to prepare novel dimeric or oligomeric mixed valency antimony compounds containing oxide, sulfide, and hydroxide as ligands the novel compounds (III) and (V) are obtained (no yields given).
ChemInform Abstract: Preparation, Structure, and Magnetic Properties of Na10Fe4Cu2W18O70H6·29 H2O, Containing the Double Keggin Anion (Fe4Cu2W18O70H6)10‐.
Authors: WASFI S. H. , RHEINGOLD A. L. , KOKOSZKA G. F. , GOLDSTEIN A. S. 
Published: May 2016

AbstractThe sodium salt (IV) of the title heteropoly anion, prepared according to the scheme (no yield given), crystallizes in the monoclinic system, space group P21/n, Z=2.
ChemInform Abstract: Parahydrogen and Synthesis Allow Dramatically Enhanced Nuclear Alignment.
Authors: BOWERS C. R. , WEITEKAMP D. P. 
Published: May 2016

AbstractIn the presence of Wilkinson's catalyst, Rh(PPh3)3Cl, acrylonitrile, CH2=CH‐CN, is hydrogenated by H2, enriched to 50% in the p‐H2 nuclear spin state, to propionitrile, CH3‐CH2‐CN.
ChemInform Abstract: Variable Stereochemistry of the Eight‐Coordinate Tetrakis(oxalato)niobium(IV), Nb(C2O4)4‐ 4.
Authors: COTTON F. A. , DIEBOLD M. P. , ROTH W. J. 
Published: May 2016

AbstractThe crystallographic analysis of the two salts (I) (space group P1, Z=4) and (II) ( P21/n, Z = 8) of the title anion show that this anion can be either square antiprismatic or dodecahedral in the solid state.
ChemInform Abstract: Fluxional Behavior of Monocoordinated Diimines and Azines.
Authors: ALVAREZ S. , BERMEJO M.‐J. , VINAIXA J. 
Published: May 2016

AbstractIntramolecular mechanisms for the haptotropic shifts of transition‐metal centers in monocoordinate complexes with potentially bidentate diimines and azines such as (I)‐(VI), e.g., and metals such as Au, Cu, Pt, Ni, Pd, Hg, Cr, Mn, Fe, W, Co, are analyzed by means of qualitative MO studies, and the factors controlling the height of the barriers for such shifts are discussed.
ChemInform Abstract: Copper(II) Complexes of Diastereoisomeric Methionylmethionines in Aqueous Solution. Favoring of the Amide‐Deprotonated Complex in the L,L‐Dipeptide Without Sulfur Coordination.
Authors: BONOMO R. P. , MACCARRONE G. , RIZZARELLI E. , VIDALI M. 
Published: May 2016

AbstractA thermodynamic investigation on Cu(II) complexes of L‐methionyl‐L‐methionine or D‐methionyl‐L‐methionine at 25 °C shows a thermodynamic stereoselectivity in the formation of the amide‐deprotonated complexes, in particular for that of the L,L‐dipeptide.
ChemInform Abstract: Catalytic Intramolecular Palladium‐Ene Reactions.
Authors: OPPOLZER W. , GAUDIN J.‐M. 
Published: May 2016

AbstractThe acetoxydiene (III), obtained in a one‐pot procedure from (I) and (II), undergoes Pd(0)‐catalyzed cyclization to yield (IV) by way of a Pd‐ene/β‐elimination mechanism.
ChemInform Abstract: Preparation of Cyclic Ureas from Carbon Dioxide and Diamines Catalyzed by Triphenylstibine Oxide.
Authors: NOMURA R. , YAMAMOTO M. , MATSUDA H. 
Published: May 2016

AbstractThe diamines (Ia) ‐ (Ie) are treated with CO2 (II) in the presence of triphenylstibine oxide, forming the cyclic ureas (III).
ChemInform Abstract: Efficient Intramolecular 2 + 2 Photocycloaddition of Styrene Derivatives Toward Cyclophanes.
Authors: NISHIMURA J. , DOI H. , UEDA E. , OHBAYASHI A. , OKU A. 
Published: May 2016

AbstractThe title reaction of the bis(vinylaryl)alkanes (I), (IV), (VI), (VIII), or (X) yields the cyclophanes (II), (III), (V), (VII), (IX), or (XI).
ChemInform Abstract: Selective Fluorination of Substituted Methanols with Methanesulfonyl Fluoride and Cesium Fluoride as Modified with Crown Ethers.
Authors: MAKINO K. , YOSHIOKA H. 
Published: May 2016

AbstractThe hydroxymethyl derivatives (I) and (III) are converted to the corresponding fluoromethyl compounds (II) or (IV) by reaction with cesium fluoride in the presence of mesyl fluoride and a crown ether.
ChemInform Abstract: Reactions of Xenon Difluoride. Part 6. Some Reactions of Phosphorus, Arsenic, and Iodine Compounds.
Authors: ALAM K. , JANZEN A. F. 
Published: May 2016

AbstractReaction of the organo‐phosphorus or arsenic derivatives (I) and (IV) or the iodo compounds (VI) with xenon difluoride (II) yields the products (III), (V), and (VII) which contain two fluorine substituents at the heteroatom.
ChemInform Abstract: Regioselective Synthesis of Terminal Olefins from Alkanes via Rhodium‐ Catalyzed CH Activation.
Authors: SAKAKURA T. , HAYASHI T. , TANAKA M. 
Published: May 2016

AbstractThe alkanes (I) are irradiated in the presence of carbon monoxide (II) and a Rh catalyst, yielding the terminal olefins (III) as the main products, together with the aldehydes (IV) ‐ (VI).
ChemInform Abstract: Formic Acid Esters by Cannizzaro‐Tishchenko Reaction of Grignard and Sodium Alkoxides with Formaldehyde.
Authors: BUNCE R. A. , SHELLHAMMER A. J. JUN. 
Published: May 2016

AbstractThe bromomagnesium alkoxides (I), prepared from the corresponding alcohols or carbonyl derivatives and Grignard compounds, react with gaseous formaldehyde (II) to produce the formic acid esters (III).
ChemInform Abstract: Nucleophilic Ring Opening of Aryl α‐Nitrocyclopropane Carboxylates with Sterically Protected but Electronically Effective Carbonyl and Nitro Group. A New Principle of α‐Amino Acid Synthesis (2‐Aminobutanoic Acid a4‐Synthon).
Authors: SEEBACH D. , HAENER R. + , VETTIGER T. 
Published: May 2016

AbstractThe title reaction, i.e. ring opening of (I) with nucleophiles (II), (VI) and (IX), gives nitro compounds of type (III).
ChemInform Abstract: Reactions of (2S)‐1‐Arenesulfonyl‐2‐alkanol Dianions with Aldehydes. Application to the Synthesis of Enantiomerically Pure (3S)‐1‐Alken‐3‐ ols and (2E,4S)‐4‐Hydroxy‐2‐alkenenitriles.
Authors: TANIKAGA R. , HOSOYA K. , KAJI A. 
Published: May 2016

AbstractThe γ‐arylsulfonyl‐β‐chlorohydrines (I) are coupled with the Grignard compounds (II) to give the β‐sulfonyl alcohols (III).
ChemInform Abstract: Solvent Effects in Reactions between Perfluoroalkyl Iodides and Cadmium.
Authors: CHEN G. J. , TAMBORSKI C. 
Published: May 2016

AbstractReaction of the perfluoroorgano iodides (I) in the presence of cadmium yields the dimers (II), the reduced compounds (III), and minor amounts of some unidentified products.
ChemInform Abstract: Synthesis and Reactivity of 1,3‐Bis((2‐pentafluoroethyl)ethylthio)‐2bromopropane.
Authors: BERTAINA B. , ROUVIER E. , BOLLENS E. , CAMBON A. 
Published: May 2016

AbstractThe title compound (IV) is prepared from the mercaptan (I) and 1,3‐dichloroisopropanol (II), followed by nucleophilic substitution with hydrogen bromide.
ChemInform Abstract: Trifluoromethyl Isocyanide as a Synthetic Building Block ‐ Reaction with Trifluoroacetic Acid and with Hexafluoroacetone.
Authors: LENTZ D. , BRUEDGAM I. + , HARTL H. 
Published: May 2016

AbstractReaction of the title compound (I) with the acid (II) yields the product (III), a colorless liquid which proves to be surprisingly stable.
ChemInform Abstract: First Synthesis of N‐Methylene‐ynamines (2‐Azabut‐1‐en‐3‐ynes).
Authors: WUERTHWEIN E.‐U. + , WEIGMANN R. 
Published: May 2016

AbstractThe title compounds (IIIa) (yellow solid) and (IIIb) (orange solid) which prove to be air‐stable for some hours can be obtained by reaction of the alkynyl cuprates (I) with the oxime esters (II).
ChemInform Abstract: Correlation Analysis in a Set of X‐Benzyltrimethylammonium Derivatives with Antimuscarinic Activity.
Authors: DE AMICI M. , DE MICHELI C. , PRATESI P. , GRANA E. , SANTAGOSTINO BARBONE M. G. , CAPELLO B. , SILIPO C. , VITTORIA A. 
Published: May 2016

AbstractThe benzyltrimethylammonium salts (III), (VIII), (XIV), and (XVIII) are prepared from the benzyl halides (I) and (IV), the benzylamines (XII), or the amides (XVII) as shown in the reaction scheme.
ChemInform Abstract: On the Regioselectivity of the Fremy′s Salt Oxidation of Phenols.
Authors: DEYA P. M. , DOPICO M. , GARCIA RASO A. , MOREY J. , SAA J. M. 
Published: May 2016

AbstractFremy's salt oxidation of the 4‐substituted phenols (I), (III), (IV) or (VI) gives the o‐quinones (II) or (V).
ChemInform Abstract: Pyrylium Compounds. Part 36. Substituted Benzoic Acid Esters from 2,4,6‐Triarylpyrylium Salts and α‐Ketocarboxylic Acid Esters.
Authors: ZIMMERMANN T. , FISCHER G. W. 
Published: May 2016

AbstractDepending on the amount of piperidine acetate, the reaction of the salts (I) with the esters (II) and/or (IV) yields the products (III) and (V) or (VI) and (VII).
ChemInform Abstract: A New and Convenient Synthesis of 4‐Amino‐3‐nitrobenzophenone and 2‐Amino‐5‐nitrobenzophenone and Their N‐Alkyl Derivatives.
Authors: AYYANGAR N. R. , LAHOTI R. J. , SRINIVASAN K. V. , DANIEL T. 
Published: May 2016

AbstractThe methoxynitrobenzophenones (III) and (VIII) react with an excess of the amines (IV) or (VI) in a pressure vessel under substitution of the methoxy group, producing the aminonitrobenzophenones (V), (VII), and (IX).
ChemInform Abstract: 1,2,3,4,5‐(1′,8′)Anthra‐8,9;10,11‐dibenzo(13)annulene and 1,8‐Distyrylanthracene as Models for Phenylenevinylene Species. Syntheses, Structures, and Redox Properties.
Authors: KLABUNDE K.‐U. , HUBER W. , LEX J. , MUELLEN K. + 
Published: May 2016

AbstractThe title compound (III), formally a (13)perimeter, and the title compound (V), the acyclic model system corresponding to (III), are prepared as shown.
ChemInform Abstract: A New Method for the Synthesis of 3,5‐Disubstituted 2(5H)‐Furanones. Synthesis of (.+‐.)‐Acarenoic Acid.
Authors: TSUBOI S. , WADA H. , MURANAKA K. , TAKEDA A. 
Published: May 2016

AbstractA new synthesis of title compounds of type (V) is accomplished following the reaction sequence shown in the scheme.
ChemInform Abstract: A Short, Efficient, Stereoselective Synthesis of Functionalized Cyclopropanes Through the Cyclization of N‐Phenyl‐3‐phenylthio‐2‐(phenylthiomethyl)propanamide.
Authors: TANAKA K. , MINAMI K. , KAJI A. 
Published: May 2016

AbstractThe bis(phenylthio)carboxylic amide (I) is coupled with the electrophiles (II) in the presence of butyllithium to form the phenylthiocyclopropanecarboxylic amides (III).
ChemInform Abstract: Diazadienes as Controlling Ligands in the Homogenous Catalysis. Part 13. Cocyclotetramerization of Two Different Alkynes to Form a Cyclooctatetraene via a Palladacyclopentadiene.
Authors: TOM DIECK H. , MUNZ C. , MUELLER C. + 
Published: May 2016

AbstractThe diazadiene‐stabilized palladacyclopentadiene (IV), prepared from the compounds (I) ‐ (III) by methods described in the literature, is a catalyst for the cyclotrimerization of alkynes.
ChemInform Abstract: Simple Synthesis of Indoles and of Corresponding 3(2H)‐Indolone Derivatives, Monosubstituted at the Benzene Ring, as Synthetic Precursors of Natural Compounds.
Authors: NIMTZ M. , HAEFELINGER G. + 
Published: May 2016

AbstractA variant of the Houben‐Hoesch reaction is used for the transformation of the amines (I) to the derivatives (III).
ChemInform Abstract: A Simple Procedure of the Preparation of 6‐Aminothieno(2,3‐d)‐1,3‐dithiole‐2‐thiones.
Authors: DOELLING W. + , AUGUSTIN M. , IHRKE R. 
Published: May 2016

AbstractThe title compounds (V) are obtained from S‐cyanomethyl dithiocarbonate (I) by cyclocondensation with carbon disulfide (II) under phase‐transfer conditions, followed by reaction with the α‐halocarbonyl compounds (IV).
ChemInform Abstract: Transition‐Metal Complex Catalyzed Perfluoroalkylation. A Facile Synthesis of Fluorine‐Containing Esters by Carbo‐Carbonylation of Alkynes and Alkenes.
Authors: URATA H. , YUGARI H. , FUCHIKAMI T. 
Published: May 2016

AbstractThe alkenes (II) and the alkynes (VII) react with the perfluoroalkyl iodide (I) in the presence of a Pd catalyst, CO (III) and the alcohols (IV) to give the esters (V) or (VIII), together with minor amounts of the olefins (VI).
ChemInform Abstract: Unexpected Cyclocotrimerization of α,ω‐Dialkynes and Nitriles to Alkynylpyridines Catalyzed by Arene‐Solvated Cobalt Atoms.
Authors: VITULLI G. , BERTOZZI S. , VIGNALI M. , LAZZARONI R. , SALVADORI P. 
Published: May 2016

AbstractCobalt metal, vaporized and then solvated by toluene or mesitylene (III), promotes the cyclocotrimerization of the α,ω‐dialkynes (I) with acetonitrile (II).