bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: A Convenient Synthesis of (η‐C8H8)UI2(THF)2 (THF: Tetrahydrofuran), a Precursor to Monocyclooctatetraenyl Uranium Complexes.
Authors: BERTHET J.‐C. , LE MARECHAL J.‐F. , EPHRITIKHINE M. 
Published: May 2016

AbstractThe preparation of the title compound (III) represents the first synthesis of a monocyclooctatetraenyl uranium complex through degradation of the very stable uranocene (I).
ChemInform Abstract: A New Method for the Synthesis of Iron Azadiene and Diene Complexes. Reaction of (η2‐RCHCHCOR′)Fe(CO)4 with Aniline and Ylide.
Authors: SEMMELHACK M. F. , CHENG C. H. 
Published: May 2016

AbstractThe complexes (IIIb) and (IIIc) are stable up to ca. 110 °C, whereas their azadiene ligands are too reactive to be isolated.
ChemInform Abstract: The Reactivity of the Pentacyano(η1‐dioxygen)cobaltate(III) Ion in Aqueous Solution.
Authors: GUBELMANN M. H. , RUETTIMANN S. + , BOCQUET B. , WILLIAMS A. F. 
Published: May 2016

AbstractFrom kinetic measurements a mechanism is deduced, which involves partial dissociation of the title complex forming with undissociated complex the η1:η1‐peroxo complex (I), which hydrolyzes to the products (II) and (III).
ChemInform Abstract: Easy, Reversible Addition of Mercury to Triplatinum Clusters: A Model for the First Step in Amalgamation of Platinum.
Authors: SCHOETTEL G. , VITTAL J. J. , PUDDEPHATT R. J. 
Published: May 2016

AbstractThe coordinatively unsaturated cluster complex (I) reacts easily with Hg to give the thermally stable Hg adduct (III) (space group P1, Z=2).
ChemInform Abstract: Influence of the Band Edge Position Upon the Reduction Kinetics and the Etching Behavior at the GaP‐Fe(CN)3‐ 6 Interface.
Authors: GOOSSENS H. H. , VERMEIR I. E. , VANDEN KERCHOVE F. , GOMES W. P. 
Published: May 2016

AbstractInvestigations of the etching kinetics in the darkness for n‐ and p‐GaP(111) and (111) crystal faces in alkaline Fe(CN)63‐ solutions by using a flow‐cell setup, show the etching mechanism to be purely electroless.
ChemInform Abstract: How Do Two C‐C Double Bonds Add to One M‐M Triple Bond? Structure and Bonding in Bis(η2‐ethylene)hexakis(neopentoxy)ditungsten.
Authors: CAYTON R. H. , CHACON S. T. , CHISHOLM M. H. , HUFFMAN J. C. 
Published: May 2016

AbstractIn the reaction between (I) and (II) an initial reversible equilibrium involving a bis‐ethylene adduct (III) is observed.
ChemInform Abstract: Intramolecular Photocycloaddition of N‐Benzylstyrylacetamides. (2 + 2)‐Addition of Styrenes to Benzenes.
Authors: AOYAMA H. , ARATA Y. , OMOTE Y. 
Published: May 2016

AbstractIrradiation of the styrylacetamides (I) in methanol results in cyclization, forming the fused cyclobutanes (II).
ChemInform Abstract: π‐Facial Selectivity in Diels‐Alder Reactions of C‐2‐Vinyl Glycals. Stereocontrolled Route to Annulated C‐Glycopyranosides.
Authors: BURNOUF C. , LOPEZ J. C. , CALVO‐FLORES F. G. , LOS ANGELES LABORDE M. , OLESKER A. , LUKACS G. 
Published: May 2016

AbstractThe diene (I) reacts with maleic anhydride (II) to produce selectively the cycloadduct (III).
ChemInform Abstract: Stereochemistry of the Thermal Acetylenic Cope Rearrangement. Experimental Test for a 1,4‐Cyclohexenediyl as a Mechanistic Intermediate.
Authors: OWENS K. A. , BERSON J. A. 
Published: May 2016

AbstractThe acetylenic Cope rearrangement between (E)/(Z) mixtures of the 4‐methyl‐5‐hepten‐1‐ynes (I) and (II) and the 4‐methyl‐1,2,5‐heptatrienes (III) and (IV) is investigated using deuterated as well as optically active precursors.
ChemInform Abstract: Origin of High Reactivity of Alkylhydroperoxides in Several Vanadium(V) Compounds.
Authors: NISHIDA Y. , YAMADA K. 
Published: May 2016

AbstractTo elucidate the mechanism of selective epoxidation of olefins by alkylhydroperoxides catalyzed by d0 metals, e.g. vanadium, studies on the reaction between DPBF (1,3‐diphenylisobenzofuran, one of the efficient singlet oxygen scavangers) and V(V) complexes containing alkylhydroperoxides such as tBuO‐OH are carried out.
ChemInform Abstract: Ruthenium Complex‐Catalyzed Selective Deoxygenation of Ketoximes to Ketimines.
Authors: AKAZOME M. , TSUJI Y. , WATANABE Y. 
Published: May 2016

AbstractThe ketoximes (I) react with CO (pressure 20 kg/cm2) in the presence of a ruthenium carbonyl complex as the catalyst to form the imines (II).
ChemInform Abstract: Reactions of Perfluoroalkanesulfonyl Chlorides with Aromatic Compounds Catalyzed by a Ruthenium(II) Complex.
Authors: KAMIGATA N. , FUKUSHIMA T. , YOSHIDA M. 
Published: May 2016

AbstractThe aromatic compounds (I) react with the perfluoroalkanesulfonyl chlorides (II) to form the substitution products (III).
ChemInform Abstract: Novel Synthesis of 2‐Aminomethyl‐1,3‐butadienes from N,O‐Acetals.
Authors: ARENZ T. , FRAUENRATH H. 
Published: May 2016

AbstractThe N,O‐acetals (I) are the starting compounds for a readily effected synthesis of the title compounds (VI) via the intermediates (III), (IV), and (V).
ChemInform Abstract: A Novel Enantiospecific Synthesis of (S)‐(‐)‐Methyl 6,8‐Dihydroxyoctanoate, a Precursor of (R)‐(+)‐α‐Lipoic Acid.
Authors: DASARADHI L. , FADNAVIS N. W. , BHALERAO U. T. 
Published: May 2016

AbstractThe methyl heptenoate (I) undergoes addition reaction with tribromomethane (II) in the presence of copper to give the tribromo ester (III).
ChemInform Abstract: Reductive Dehalogenation of Halogen Derivatives of 1,1′‐Bi(bicyclo‐(1.1.1)pentane).
Authors: SADOVAYA, N K. , BLOKHIN A. V. , TYUREKHODZHAEVA M. A. , GRISHIN YU. K. , SURMINA L. S. , KOZ'MIN A. S. , ZEFIROV N. S. 
Published: May 2016

AbstractTreatment of 3,3'‐diiodo‐1,1‐bi(bicyclo(1.1.1)pentane) (I) with tributylstannane gives the parent hydrocarbon (II).
ChemInform Abstract: A Novel Electrochemical Method for Benzoylation of Aminoalcohols with Methyl Benzoates at Room Temperature.
Authors: ARAI K. , TAMURA S. , MASUMIZU T. , KAWAI K. , NAKAJIMA S. , UEDA A. 
Published: May 2016

AbstractThe electrolytic formation of the hydroxyamides (IV), (VI) proceeds via aminoesters, e.g. (III).
ChemInform Abstract: Synthesis and Evaluation of the Analgesic and Antiinflammatory Activities of N,N′‐Bis(2‐hydroxybenzoyl)diaminoalkanes.
Authors: DAIDONE G. , RAFFA D. , MAGGIO B. , PLESCIA S. , MATERA M. , CARUSO A. 
Published: May 2016

AbstractEleven diaminoalkanes such as (I) are coupled with the salicylate (II) to produce the title compounds (III).
ChemInform Abstract: Stereoselective Synthesis of cis‐2,3‐Diarylaziridine by Rearrangement of Aryl‐Substituted N‐(Silylmethyl)imine.
Authors: KOMATSU M. , OHNO M. , TSUNO S. , OHSHIRO Y. 
Published: May 2016

AbstractThe N‐(silylmethyl)imines (I) undergo thermal rearrangement and cyclization to form the diarylaziridines (II) which are hydrolyzed to give the deprotected aziridines (III) as the main products with high cis‐selectivity.
ChemInform Abstract: Regio‐ and Stereoselective Oxetane Formation via Paterno‐Buechi Photocycloaddition.
Authors: FLEMING S. A. , JONES R. W. 
Published: May 2016

AbstractThe title reaction of the components (I) and (II) takes place with extremely high diastereoselectivity as shown by analysis of the major 2 + 2 photoproduct (III).
ChemInform Abstract: The Aqueous Base‐Induced Cyclization of N‐(3‐Halogenoacyl)amino Carboxylic Acids to β‐Lactams.
Authors: IRWIN V. P. , TIMONEY R. F. 
Published: May 2016

AbstractCompounds (I) undergo unusually facile intramolecular N‐alkylation to novel β‐lactams (II).
ChemInform Abstract: Potential Antipsychotic Agents. Part 5. Synthesis and Antidopaminergic Properties of Substituted 5,6‐Dimethoxysalicylamides and Related Compounds.
Authors: HOEGBERG T. + , BEGTSSON S. , DE PAULIS T. , JOHANSSON L. , STROEM P. + , HALL H. , OEGREN S. O. + 
Published: May 2016

AbstractThe trimethoxybenzene (I) is converted into the substituted benzoic acids (II).
ChemInform Abstract: The Reaction of 1‐Methylindole with Diethyl Azodicarboxylate.
Authors: DIDA F. B. W. , GARCIA‐GRANDA S. , GOMEZ‐BELTRAN F. , JONES R. A. , PEREZ‐CARRENO E. , SEPULVEDA‐ARQUES J. 
Published: May 2016

AbstractIn order to complete the study of the reactivity of 5‐membered heterocycles, compound (I) is treated with (II).
ChemInform Abstract: Preparation of Alkyl‐Substituted Indoles in the Benzene Portion. Part 3.
Authors: MURATAKE H. , NATSUME M. 
Published: May 2016

AbstractAcylation of 1‐tosylpyrrole (I) with acetic anhydride (IIa) or the acid chlorides (IIb) in the presence of Lewis acids yields the acyltosylpyrroles (III) and/or (IV) which are coupled with the Grignard reagent (V) in tetrahydrofuran to produce the alcohols (VI) or (VIII).
ChemInform Abstract: Synthesis and α2‐Adrenoceptor Effects of Substituted Catecholimidazoline and Catecholimidazole Analogues in Human Platelets.
Authors: MILLER D. D. , HAMADA A. , CLARK M. T. , ADEJARE A. , PATIL P. N. , SHAMS G. , ROMSTEDT K. J. , KIM S. U. , INTRASUKSRI U. , MCKENZIE J. L. , FELLER D. R. 
Published: May 2016

AbstractThe bisbenzyloxybenzaldehyde (I) reacts with diethoxymethylimidazole (II) to give the carbinol (III) which is transformed into the benzylimidazole (IV).
ChemInform Abstract: New Heterocyclic Derivatives of Benzimidazole with Germicidal Activity. Part 7. 2‐(5′‐Nitro‐2′‐furyl or ‐2′‐thienyl)benzimidazoles with Different Substituents in the 5‐Position.
Authors: PEDINI M. , DE MEO G. , RICCI A. , BASTIANINI L. , JACQUIGNON P. 
Published: May 2016

AbstractThe title compounds (III) are prepared by cyclocondensation of the o‐phenylenediamines (I) with the heterocyclic aldehydes (II) in the presence of potassium hexacyanoferrate(III).
ChemInform Abstract: Synthesis of 5‐Substituted Benzothiazolylimino‐3‐arylimino‐1,2,4‐dithiazolidines.
Authors: SINGH A. P. , BHATTACHARYA A. , VERMA V. K. 
Published: May 2016

AbstractThe 2‐aminobenzothiazole (I) is converted in three steps to the S‐allylisothiourea (VII) which is further coupled with the isothiocyanates (VIII) to yield the adducts (IX).
ChemInform Abstract: Furan o‐Aminonitriles as Precursors to Flavone Analogues.
Authors: CUTLER S. J. , EL‐KABBANI F. M. , KEANE C. , FISHER‐SHORE S. L. , BLANTON C. D. 
Published: May 2016

AbstractThe oxanorbornenes, obtained by Diels‐Alder reaction of the aminofurancarbonitriles (I) with methyl vinyl ketone (II), are directly dehydrated upon acidic work‐up to produce the 3‐cyano‐2‐hydroxyacetophenone (III).
ChemInform Abstract: A Novel Formation of Phenyl‐Substituted Pyridines by the Reaction of N‐(Diphenylphosphinyl)‐1‐azaallyl Anions with α,β‐Unsaturated Carbonyl Compounds. A New Synthetic Equivalent of Primary Vinylamines.
Authors: KOBAYASHI T. , KAWATE H. , KAKIUCHI H. , KATO H. 
Published: May 2016

AbstractThe azaallyl anions (II) and (VIII), derived from the corresponding imine (I) and enamine (VII), react with carbonyl compounds such as (III) and (IX) to give mainly pyridine derivatives such as (IV) and (X) via Michael addition, followed by intramolecular aza‐Horner‐Wittig reaction.
ChemInform Abstract: Synthesis and α‐Adrenolytic Activities of 2‐(1,4‐Benzodioxan‐2‐ylmethyl)‐6,7‐dimethoxy‐1,2,3,4‐tetrahydroisoquinoline Derivatives.
Authors: GLUSA E. , GRUENER H. + , HAGEN A. , LOHMANN D. , FOKEN H. 
Published: May 2016

AbstractCyclocondensation of β‐(3,4‐dimethoxyphenyl)ethylamine (I) with formaldehyde (II), followed by treatment with hydrochloric acid gives the tetrahydroisoquinoline derivative (III) which is coupled with 2‐chloromethyldihydrobenzodioxin (IV) to form the tetrahydroisoquinoline derivative (V).
ChemInform Abstract: 5,21‐Dimethyl‐8,24‐pentamethylenedioxy‐1,10,17,26‐tetra‐aza(2,2)(mo)2‐cyclophane.
Authors: FREDERICKSON M. , BAILEY N. A. , ADAMS H. , HASLAM E. 
Published: May 2016

AbstractThe title compound (III) (space group P212121 with Z=4) is acetylated yielding (V), a secondary amine in which inversion at the amino‐nitrogen atoms is inhibited at ambient temperature.
ChemInform Abstract: Chemistry of Organosilicon Compounds. Part 268. Synthesis, Properties, and Molecular Structure of Tetrakis(pentamethyldisilanyl)ethylene.
Authors: SEKIGUCHI A. , EBATA K. , KABUTO C. , SAKURAI H. 
Published: May 2016

AbstractThe tetrasilylethene (I) reacts with trimethylsilyllithium (II) to give the title compound (III), together with the tris(disilyl) derivative (IV).
ChemInform Abstract: Reaction of 2‐Hydroperfluoropropyl Azide with Some Phosphorous Acid Derivatives.
Authors: LERMONTOV S. A. , POPOV A. V. , SUKHOZHENKO I. I. , ZAVEL'SKII V. O. , MARTYNOV I. V. 
Published: May 2016

AbstractThe hexafluoropropyl azide (I) is coupled with trimethyl phosphite (II) to give dimethyl fluorophosphate (III) and the tetrafluoropropionitrile (IV).
ChemInform Abstract: Anodic Synthesis and Molecular Structure of Dodecaethylhexaamidobiphosphonium Diperchlorate.
Authors: ROMAKHIN A. S. , PALYUTIN F. M. , IGNAT'EV YU. A. , NIKITIN E. V. , KARGIN YU. M. , LITVINOV I. A. , NAUMOV V. A. 
Published: May 2016

AbstractAnodic oxidation of hexaethylphosphorous triamide (I) in the presence of sodium perchlorate gives the biphosphonium salt (II).
ChemInform Abstract: The C‐O Bond Cleavage of Cyclic Ethers with Tris(phenylseleno)borane‐Lewis Acid.
Authors: KATAOKA T. , YOSHIMATSU M. , SHIMIZU H. , KAWASE Y. , HORI M. 
Published: May 2016

AbstractTris(phenylseleno)borane (II) reacts with the cyclic ethers (I), (IV), and (VII) under ring‐cleavage to produce the hydroxyalkyl selenoethers (III), (V) or (VIII), and (IX).
ChemInform Abstract: Stereoselective Synthesis and Characterization of 2‐Alkyl and 2‐(Hetero)aryl Substituted (Z)‐ and (E)‐1‐Trimethylsilyl‐1‐trimethylstannylethenes.
Authors: ROSSI R. , CARPITA A. , BELLINA F. , DE SANTIS M. , VERACINI C. A. 
Published: May 2016

AbstractThe title compounds (III), (IV), (VI), and (IX) are prepared with 99% stereoisomeric purity by the methods shown in the scheme.
ChemInform Abstract: Synthesis and Structure of Tetradentate Amido‐phenolate Manganese(III) Complexes; Procursors for High‐Valent Manganese Chelate Complexes.
Authors: BERTONCELLO K. , FALLON G. D. , MURRAY K. S. 
Published: May 2016

AbstractA tetraanionic amido‐phenolate ligand reacts in alcoholic solution with Mn(II) acetate in air in the presence of bases such as KOH or Py to yield complexes such as (I), which can be transformed into (II) by dissolution in MeOH/Py.
ChemInform Abstract: Perchlorinated and Highly Chlorinated meso‐Tetraphenylporphyrins.
Authors: WIJESEKERA T. , MATSUMOTO A. , DOLPHIN D. , LEXA D. 
Published: May 2016

AbstractThe electron‐withdrawing chloro substituents in the porphyrinatoiron(III) complexes (Ib)‐(Id) cause anodic shifts in the half‐wave potentials relative to that of the unsubstituted compound (Ia).
ChemInform Abstract: Ring‐Opening of a Bicyclo(3.2.0)hepta‐1,3‐dienylcobalt(I) Complex Followed by Cycloaddition.
Authors: BUTENSCHOEN H. + 
Published: May 2016

AbstractThe four‐membered ring in (I) is opened at only 200 °C leading to an allyl‐diene system which can be trapped by (2 + 4) cycloaddition with dienophiles such as (III) to give the cycloadduct (IV).
ChemInform Abstract: Complexing Ability of a New Type of Bis‐Amidato Ligand. Crystal Structure of N,N′‐Bis(1‐methyl‐3‐oxo‐1‐butenyl)oxamidato Copper(II) (CuL); Spectroscopic and Magnetic Properties and Redox Behaviour of CuL and the Related Nickel(II), Cobalt(II) and Cobalt(III) Complexes.
Authors: CROS G. , GLEIZES A. , LAURENT J.‐P. , DARBIEU M.‐H. 
Published: May 2016

AbstractThe ligand (IIIb), prepared similarly to (IIIa) in 65% yield using isophthaloyl dichloride, undergoes breaking of the imine bonds on reaction with metallic ions.
ChemInform Abstract: Chemistry of α‐Aminonitriles. Part 2. Aziridine‐2‐carbonitrile: Photochemical Formation from 2‐Aminopropenenitrile.
Authors: DRENKARD S. , FERRIS J. , ESCHENMOSER A. 
Published: May 2016

AbstractPhotoisomerization of 2‐aminopropenenitrile (I) leads to the aziridine (II); the larger part of the starting material, however, fragments to HCN and MeCN.
ChemInform Abstract: Intramolecular Cyanohydrin Elaboration. Construction of Corticosteroids from 17‐Ketosteroids.
Authors: LIVINGSTON D. A. , PETRE J. E. , BERGH C. L. 
Published: May 2016

AbstractCortexolone acetate (VII) (no yield given) and 17α‐hydroxyprogesterone (VIII) are synthesized via the cyanohydrin intermediate (III).
ChemInform Abstract: Peptide Synthesis Under High Pressure.
Authors: GANTE J. , KALTHOF U. , KLAERNER F.‐G. + , WEBER T. 
Published: May 2016

AbstractThe novel methodology described in the title permits the coupling of N‐protected, non‐activated amino acid alkyl esters such as (I) with sodium or other derivatives of simple amino acids (cf.
ChemInform Abstract: Phosphonic‐Acid Analogues of the N‐Acetyl‐2‐deoxyneuraminic Acids: Synthesis and Inhibition of Vibrio cholerae Sialidase.
Authors: WALLIMANN K. , VASELLA A. 
Published: May 2016

AbstractThe title compounds (‐)‐(IX) and (‐)‐(X) (formed from (‐)‐(VIII)) are prepared to compare their inhibitory activity with the one of the corresponding acids (‐)‐(XI) and (‐)‐(XII).
ChemInform Abstract: Reactivity Parameters of the Metal‐Assisted 1,2‐Cleavage of Penicillins.
Authors: ALPEGIANI M. , BEDESCHI A. , BISSOLINO P. , VISENTIN G. , ZARINI F. , PERRONE E. , FRANCESCHI G. 
Published: May 2016

AbstractTreatment of the methyl dibromopenicillanate (I) with silver(I) acetate and subsequent acetylation with acetyl chloride (II) produce the 1,2‐secopenicillanate (III).
ChemInform Abstract: Nanometer‐Sized ZrO2 Particles Prepared by a Sol‐Emulsion‐Gel Method.
Authors: RAMAMURTHI S. D. , XU Z. , PAYNE D. A. 
Published: May 2016

AbstractIn the sol‐emulsion‐gel process, water droplets containing zirconium ions (ZrO(NO3)2) are suspended and stabilized in an organic nonpolar solvent (xylene) by addition of an appropriate surfactant (polyoxy‐ethylene sorbitan mono‐oleate).
ChemInform Abstract: Structure of the Heavy‐Fermion Superconductor UBe13.
Authors: MCELFRESH M. W. , HALL J. H. , RYAN R. R. , SMITH J. L. , FISK Z. 
Published: May 2016

AbstractThis first single crystal study of the heavy‐fermion superconductor UBe13 shows the compound to crystallize in the cubic system (Fm3c, Z = 8).
ChemInform Abstract: Structure of the Sodium Ion Conductor Na7Fe3(As2O7)4.
Authors: MASQUELIER C. , D'YVOIRE F. , RODIER N. 
Published: May 2016

AbstractCrystals of the recently synthesized title compound are obtained by melting a mixture of composition Fe2O3 + 3.7 As2O5 + 5.1 Na4As2O7 at 1073 K and cooling at a rate of 100 K/h. The compound crystallizes in the monoclinic system (C2/c, Z=4).
ChemInform Abstract: Ordering of Copper Single‐Crystal Surfaces in Solution. Confirmation by Low Energy Electron Diffraction.
Authors: VILLEGAS I. , EHLERS C. B. , STICKNEY J. L. 
Published: May 2016

AbstractIt is demonstrated that crystallographic ordering of Cu single crystal electrode surfaces which have been disordered by oxidation or ion bombardment can be restored in situ by a chemical or electrochemical etch in mild acid solution (e.g.
ChemInform Abstract: Electrocatalysis of Anodic Oxygen‐Transfer Reactions. Application of an Electrochemical Quartz Crystal Microbalance (EQCM) to a Study of Pure and Bismuth‐Doped Beta‐Lead Dioxide Film Electrodes.
Authors: LAREW L. A. , GORDON J. S. , HSIAO Y.‐L. , JOHNSON D. C. , BUTTRY D. A. 
Published: May 2016

AbstractThe EQCM results show that Bi(III) is oxidized during anodic deposition of Bi‐PbO2 films from solutions of Pb(II) and Bi(III) in 0.1 M HClO4.
ChemInform Abstract: An Ellipsometric Study of Surface Films Grown on Iron and Iron‐Carbon Alloys in 0.05 M KOH.
Authors: FLIS J. , ORANOWSKA H. , SZKLARSKA‐SMIALOWSKA Z. 
Published: May 2016

AbstractIt is found that the anodic dissolution rate of iron is increased in Fe‐C alloys with medium carbon content (about 0.4% C) and the complex refractive indices of the surface films are lowered, whereas high carbon contents (about 0.7% C) suppress the dissolution and increase the refractive index.
ChemInform Abstract: Anodic 1,2‐ and 1,4‐Addition Products from Methyleugenol as Predicted by the EECrCp Mechanism.
Authors: WANG S. , SWENTON J. S. 
Published: May 2016

AbstractMethyleugenol (I) is subjected to electrochemical reaction with methanol (II) in the presence of sodium perchlorate and bases to form the isomeric allyltetramethoxycyclohexadienes (III) and (IV).
ChemInform Abstract: Acyclic Diastereoselective Synthesis Using Tartrate Ester Modified Crotylboronates. Double Asymmetric Reactions with α‐Methyl Chiral Aldehydes and Synthesis of the C(19)‐C(29) Segment of Rifamycin S.
Authors: ROUSH W. R. , PALKOWITZ A. D. , ANDO K. 
Published: May 2016

AbstractThe enantiomeric title crotylboronates (Ia) and (Ib) react stereoselectively with chiral aldehydes, e.g. (II) and (V), to give the products (III) and (VI), resp., with anti and syn relationship between the branching methyl groups.
ChemInform Abstract: Catalytic Asymmetric Ring‐Opening of Bridged Tricyclic Anhydrides.
Authors: AITKEN R. A. , GOPAL J. 
Published: May 2016

AbstractCatalysis by either quinine or quinidine in the methanolysis of the anhydrides (I), (IV) and (VI) gives selective access to either enantiomer of the resulting half‐esters; for this class of bridged chiral compounds, the title methodology is clearly superior to known enzymatic procedures.
ChemInform Abstract: Nucleophilic Addition of Enolates to the Central Carbon of Transition‐Metal η3‐Allyl Complexes. Metallacyclobutane Formation, Reversibility of Nucleophilic Addition, and Synthesis of α‐Cyclopropyl Ketones.
Authors: TJADEN E. B. , STRYKER J. M. 
Published: May 2016

AbstractThe regioselective addition reactions of the enolate nucleophiles (II) to the cationic Ir and Rh complexes (I) and (IV) are examined.
ChemInform Abstract: Novel Bromolactonization Using a Dimethyl Sulfoxide‐Trimethylsilyl Bromide‐Amine System. Unusual cis‐Addition of trans‐6‐Substituted 3‐Cyclohexene‐1‐carboxylic Acids.
Authors: IWATA C. , TANAKA A. , MIZUNO H. , MIYASHITA K. 
Published: May 2016

AbstractTreatment of unsaturated carboxylic acids with trimethylsilyl bromide in dimethyl sulfoxide and in the presence of diisopropylethylamine results in cyclization and halogenation, producing bromo lactones as outlined in the reaction scheme.
ChemInform Abstract: Carbanion Photochemistry: A New Photochemical Route to Strained Cyclic Allenes.
Authors: TOLBERT L. M. , ISLAM MD. N. , JOHNSON R. P. , LOISELLE P. M. , SHAKESPEARE W. C. 
Published: May 2016

AbstractIrradiation (or thermolysis) of the anions formed by deprotonation of the substrates (I) with KO‐tBu generates the title allene intermediates (III) which are trapped by furan (II) or the benzoisofuran (V) to give the cycloadducts (IV) or (VI) + (VII), respectively (X‐ray analysis of (IVa): space group P2/c; Z=4).
ChemInform Abstract: Free Radical Mediated Reduction and Deoxygenation of Epoxides.
Authors: RAJANBABU T. V. , NUGENT W. A. , BEATTIE M. S. 
Published: May 2016

AbstractThe radical formed upon treating an epoxide such as (I) with Cp2TiCl can be trapped by an H atom donor such as cyclohexa‐1,4‐dione leading to an overall reduction (e.g.
ChemInform Abstract: Synthesis of Disulfides and Trisulfides via Organosilicon Compounds.
Authors: CAPOZZI G. , CAPPERUCCI A. , DEGL'INNOCENTI A. , DEL DUCE R. , MENICHETTI S. 
Published: May 2016

AbstractSilyl sulfides (II) smoothly react with thiolsulfinates such as (I) or thiolsulfonates such as (V) under mild conditions to give unsym. disulfides, e.g. (III).
ChemInform Abstract: An Efficient Route to Linear Conjugated Triepoxides: allo‐, galacto‐, and altro‐Type Trianhydrohexitols.
Authors: KAMMERER J. , RIHS G. , PRINZBACH H. 
Published: May 2016

AbstractThe dibromides (I), available from benzene via epoxidation and bromination, are converted into the title compounds (II) (X‐ray structure of (IIb): space group P212121, Z=4).
ChemInform Abstract: Synthesis and Properties of Bridged 2,2′‐Bithiazolium Salts.
Authors: GOULLE V. , CHIRAYIL S. , THUMMEL R. P. 
Published: May 2016

Abstract2,2'‐Bithiazole (I) is coupled with the polymethylene dihalides (II) to give the bridged bisthiazolium salts (III).