bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Exceptional Desulfonylation of β‐Epoxy Sulfonyl Containing 10‐Oxatricyclodecenones.
Authors: HOUWEN‐CLAASSEN A. A. M. , KLUNDER A. J. H. , ZWANENBURG B. 
Published: May 2016

AbstractThe 10‐oxatricyclodecenone‐fused tosylmethyl‐substituted oxirane (Ib) undergoes ring opening reaction and desulfonylation with sodium methoxide in boiling methanol to yield the stable dimethyl acetal (III), whereas the ethoxymethyl‐substituted analogue (Ia) does not react in this way.
ChemInform Abstract: N‐Protecting Group Dependent Aromatization of 3‐Pyrroline Systems to Pyrroles.
Authors: KO K.‐Y. , LEE K.‐I. , KIM J. H. , JUNG M. H. , KIM W.‐J. 
Published: May 2016

AbstractIt is interesting to note that the aromatized aldehyde (II) is formed instead of (III), when (I) is treated with DDQ or pyridinium dichromate.
ChemInform Abstract: The Reactions of Pindolol, Mepindolol, Carazolol, and Related Model Compounds with Triethyl Orthoformate: Pathways and Products of a New Colour Reaction.
Authors: PINDUR U. , WITZEL H. 
Published: May 2016

Abstract4‐Methoxyindole (I) is formylated to give the indolyl‐3‐carbaldehyde (III) using either triethyl orthoformate (II) in the presence of an acid or Vilsmeier‐Haack conditions.
ChemInform Abstract: Diastereo‐ and Enantioselective Synthesis of α,α′‐Disubstituted Spiroacetals Using the SAMP‐/RAMP‐Hydrazone Method.
Authors: ENDERS D. , GATZWEILER W. , DEDERICHS E. 
Published: May 2016

Abstractα,α'‐Disubstituted spiroacetals such as (VII) are synthesized with excellent enantiomeric excess in good overall yields from the sym. ketones (I) employing twofold alkylation of the SAMP‐hydrazone (III) and subsequent cyclization.
ChemInform Abstract: Reactions of ortho‐Quinones with Ethoxycarbonylmethylene(triphenyl)phosphorane. Trapping of the ortho‐Quinone Methanide Intermediates.
Authors: NICOLAIDES D. N. , ADAMOPOULOS S. G. , LEFKADITIS D. A. , LITINAS K. E. 
Published: May 2016

AbstractBesides the expected coumarins (III) and (VI) the benzofurans (IV) and the open‐chain compounds (VII) and (VIII) are formed.
ChemInform Abstract: Addition of Nitroalkanes to ortho‐Halonitrobenzenes. A New Synthesis of 4‐Chloro‐7‐(trifluoromethyl)quinoline.
Authors: REID J. G. , RUNGE J. M. R. 
Published: May 2016

AbstractThe o‐chloronitrobenzene (I) reacts with nitroethane (II) in the presence of DBU to generate the salt (III) which is oxidized, yielding the acetophenone (IV).
ChemInform Abstract: Regioselectivity of Nitration of Thieno‐Fused Quinoline and Isoquinoline Derivatives.
Authors: SZABO K. J. , TIMARI G. , GRONOWITZ S. 
Published: May 2016

AbstractTheoretical MNDO calculations are performed for sigma complexes occurring in nitration reactions of title compounds (see foregoing ref.) to interprete the selectivities observed.
ChemInform Abstract: Synthesis of Pyrido(2,3‐d)pyrimidine‐2,4‐diones from Pyrimido(4,5‐e)‐1,2,4‐triazine‐6,8‐diones by Inverse Azadiene Reaction.
Authors: SHORSHNEV S. V. , ESIPOV S. E. , CHERNYSHEV A. I. , POZHARSKII A. F. , KUZ'MENKO V. V. , GULEVSKAYA A. V. 
Published: May 2016

AbstractThe pyrimido(4,5‐e)‐1,2,4‐triazinediones (II), of which (IIb) and (IIc) are prepared by oxidation of the corresponding xanthines (Ib) and (Ic), react with methyl vinyl ether (III), the ketones (V), or the enamine (VII) to give the pyridopyrimidinediones (IV) and (VI) respectively.
ChemInform Abstract: Novel Pyrido(1,2‐b)(1,2,4)triazines (V) from 1,6‐Diaminopyridines.
Authors: ATANASOV K. D. , LAFUENTE P. , QUINTEIRO M. , SEOANE C. , SOTO J. L. 
Published: May 2016

AbstractTreatment of the known 1,6‐diamino‐2‐pyridones (III) with biacetyl (IV) affords the title compounds (V).
ChemInform Abstract: Imidazo(1,2‐e)(1,3,5)triazepine Derivatives: First Representatives of a New Heterocyclic System.
Authors: KAUPP G. , SAILER K. 
Published: May 2016

AbstractSymmetrically substituted title compounds (IV) are obtained in a new one‐pot process with CH2Cl2 (III) surprisingly acting as a carbon donor.
ChemInform Abstract: Chemistry of Phosphorus. Part 202. Hepta‐tert.‐butylnonaphosphane(7), P9(tBu)7, and Octa‐tert.‐butyldecaphosphane(8), P10(tBu)8 ‐ Preparation and Structure Determination by 31P‐NMR Spectroscopy.
Authors: BAUDLER M. , SCHNALKE M. , WIATEREK CH. 
Published: May 2016

AbstractBy dehalogenation of the phosphane (I) with Mg in the presence of white phosphorus the title compounds (III) and (IV) are obtained, which represent the first bicyclophosphanes PnRn‐2 with n > 8. They are structurally homologues of P8(tBu)6, in which two tert.‐butylsubstituted P4 rings are linked through a σ‐bond.
ChemInform Abstract: Coordination Compounds with Biomimetic N2S2 and N4S2 Ligands: Synthesis and Spectral Studies on Divalent Transition Metal Complexes of Benzildithiosemicarbazone and ‐thiocarbohydrazone.
Authors: KRISHNA A. , REDDY K. H. , REDDY D. V. 
Published: May 2016

AbstractPreformed benzildithiosemicarbazone reacts with metal salts to give the complexes (III).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 101. Synthesis of the Compounds (WPt(μ‐CC6H4Me‐4)(.mu±sigma.:ηx‐C2BnHn‐1Me2)(CO)2(PMe2Ph)2) (x = 5, n = 9; x = 6, n = 10); Crystal Structures of an Isomer of Each Complex.
Authors: CARR N. , GIMENO M. C. , STONE F. G. A. 
Published: May 2016

AbstractThe carbyne complex (I) containing the 12‐vertex WC2B9 group reacts with the Pt complex (II) in acetone to afford the two isomers (III) (space group P21/c, Z=2) and (IV) and a small amount of the salt (V).
ChemInform Abstract: Development of New Technetium Cores Containing Technetium‐Nitrogen Multiple Bonds. Synthesis and Characterization of Some Diazenido‐, Hydrazido‐ and Imido‐Complexes of Technetium.
Authors: ARCHER C. M. , DILWORTH J. R. , JOBANPUTRA P. , THOMPSON R. M. , MCPARTLIN M. , POVEY D. C. , SMITH G. W. , KELLY J. D. 
Published: May 2016

AbstractThe title complexes containing novel Tc cores with chemically robust Tc‐N bonds in combination with appropriate ancillary ligands to control biological targeting characteristics offer a whole new range of possibilities for the development of technetium‐based diagnostic agents in nuclear medicine.
ChemInform Abstract: Redox‐Active Cavitand Host Molecules Containing Multiple Ferrocenyl Redox Centers: Syntheses, Crystal Structure, Molecular Mechanics Calculations, and Electrochemical Properties.
Authors: BEER P. D. , TITE E. L. , DREW M. G. B. , IBBOTSON A. 
Published: May 2016

AbstractThe first example of a rigid redox‐active host molecule is (V).
ChemInform Abstract: A Novel Copper(II) Complex Containing the Ligand 1,2‐Bis(2,2′‐bipyridyl‐6‐yl)ethane: Structural, Magnetic, Redox, and Spectral Properties.
Authors: GARBER T. , VAN WALLENDAEL S. , RILLEMA D. P. , KIRK M. , HATFIELD W. E. , WELCH J. H. , SINGH P. 
Published: May 2016

AbstractThe preparation of the ligand (V) follows a known procedure.
ChemInform Abstract: Reaction of THF·BH3 with H2Ru4(CO)13 and H4Ru4(CO)12; Preparation and Structure of the Tetraruthenium “Butterfly” Cluster HRu4(CO)12BH2.
Authors: HONG F.‐E. , MCCARTHY D. A. , WHITE J. P. III , COTTRELL C. E. , SHORE S. G. 
Published: May 2016

AbstractStarting with H2Ru4(CO)13 only a small amount of the butterfly cluster (III) (space group Cm, Z=2) is obtained besides (I); however, (I) leads to 60% of (III) in addition to a Ru carbide cluster and unidentified products.
ChemInform Abstract: Mixed Sulfur and Phosphorus Ylide Complexes of Palladium Formed by Phase‐Transfer Catalysis. X‐Ray Crystal Structure of (Pd((CH2)2S(O)Me)(Ph2PCH2PPh2CHC(O)Ph))I·CH2Cl2·H2O.
Authors: LIN I. J. B. , SHY H. C. , LIU C. W. , LIU L.‐K. , YEH S.‐K. 
Published: May 2016

AbstractThe phase‐transfer technique is an easy method to prepare ylide complexes (IV) or (VII) from readily accessible starting materials.
ChemInform Abstract: Synthesis, Structure, and Facile Oxidation of a Novel 1,1′‐Bis(N,N‐dimethylaminomethyl)ferrocene‐Bridged Diplatinum Complex.
Authors: HEADFORD C. E. L. , MASON R. , RANATUNGE‐BANDARAGE P. R. , ROBINSON B. H. , SIMPSON J. 
Published: May 2016

Abstract1,1'‐Bis(dimethylaminomethyl)ferrocene (I) and the platinum dimethyl sulfoxide complex (II) undergo substitution reaction in acetone to yield the diplatinum complex (III) which is cyclized in refluxing methanol to produce the cyclometalated diplatinum complex (IV).
ChemInform Abstract: Syntheses with Nitriles. Part 87. Chromoionophores by Addition of N‐Phenyl(aza‐15‐crown‐5) (II) to Reactive Dicyanomethylene Compounds.
Authors: JUNEK H. , KLADE M. , BIZA P. , GERINGER M. , STERK H. 
Published: May 2016

AbstractThe addition reaction leads to the colorless malonitriles (III) and (VI), respectively.
ChemInform Abstract: Macrocyclic Tetranuclear Clusters with 28‐, 32‐, 36‐, 40‐, and 44‐Membered Rings as High‐Potential Iron‐Sulfur Protein Analogues.
Authors: TOMOHIRO T. , UOTO K. , OKUNO H. 
Published: May 2016

AbstractA new series of Fe4S4 clusters (V) (62‐86% yield), active‐site analogues for Fe‐S proteins, are prepared as outlined for the example (Va).
ChemInform Abstract: Short and Efficient Synthesis of Statine and Isostatine Derivatives.
Authors: KESSLER H. , SCHUDOK M. 
Published: May 2016

AbstractThe N‐Fmoc‐protected derivatives (I) of (L)‐amino acids are converted to the acid chlorides (II) and then coupled with lithium tert‐butoxycarbonylmethanide (III) to give the β‐keto esters (IV).
ChemInform Abstract: Synthesis of Vinca Alkaloids and Related Compounds. Part 44. Synthesis of Trifluoroapovincaminic Acid Ester.
Authors: INCZE M. , SOTI F. , KARDOS‐BALOGH Z. , KAJTAR‐PEREDY M. , SZANTAY C. 
Published: May 2016

AbstractCoupling of the 6,6,6‐trifluoro‐4‐formylhexanoate (V), prepared as outlined in the reaction scheme, with tryptamine (VI) is followed by cyclocondensation, forming the indoloquinolizinones (VII) and (VIII).
ChemInform Abstract: General Methodology for the Synthesis of Neocarzinostatin Chromophore Analogues: Intramolecular Chromium‐Mediated Closures for Strained‐Ring Synthesis.
Authors: WENDER P. A. , MCKINNEY J. A. , MUKAI C. 
Published: May 2016

AbstractNeocarzinostatin (NCS), an antitumor antibiotic, is used for the treatment of pancreatic cancer and leukemia.
ChemInform Abstract: Potential Antimalarials. Part 11. 4′‐Chloro‐3‐(substituted amino)‐methyl‐5‐(7‐trifluoromethyl‐quinolin‐4‐ylamino)biphenyl‐2‐ols.
Authors: BARLIN G. B. , JIRAVINYU C. 
Published: May 2016

AbstractMannich reaction of the known biphenyl (I) (synthesis briefly described) with eight amines such as (III) leads to (IV) (in good yield), which after reduction of the nitro group are condensed with chloroquinoline (V) to give title compounds (VI) (Tebuquine analogues) (all yields in g).
ChemInform Abstract: Symmetry Reduction and Magnetic Ordering in the Defect α‐GdSi2‐Type Compound TbSix, 1.75 ≤ x < 1.85.
Authors: SCHOBINGER‐PAPAMANTELLOS P. , JANSSEN T. , DE MOOIJ D. B. , BUSCHOW K. H. J. 
Published: May 2016

AbstractSamples of TbSix are prepared in the composition range 1.70 ≤ x ≤ 1.85 by arc‐melting of the elements in argon atmosphere.
ChemInform Abstract: Microcalorimetric Study of the Acidity and Basicity of Metal Oxide Surfaces.
Authors: AUROUX A. , GERVASINI A. 
Published: May 2016

AbstractThe adsorption of NH3 and CO2 on 19 simple metal oxides (Al, Be, Ca, Mg, Zn, Cr, Ga, La, Nd, Pr, Nb, Mo, W, V, Th, Si, Ta, Ti, Zr) are studied by microcalorimetry in order to determine the number and nature of basic and acidic surface sites.
ChemInform Abstract: Synthesis and Structure of Some New Lamellar Phases: The Graphite‐Rubidium‐Arsenic Ternaries.
Authors: ASSOUIK J. , LAGRANGE P. 
Published: May 2016

AbstractBinary Rb‐As alloys with As concentrations in the range 18‐55 at.% are found to react with graphite at 610‐640 °C to form new lamellar intercalation compounds such as RbAs0.5C4, Rb0.7As0.9C8, and RbAsC8.
ChemInform Abstract: Preparation and Characterization of Tetraphenylphosphonium and Tetraphenylarsonium Halogenoargentates(I), Including a New Iodoargentate(I) Cluster, (Ag4I8)4‐, Containing Three‐ and Four‐Coordinated Silver(I).
Authors: HELGESSON G. , JAGNER S. 
Published: May 2016

AbstractThe isostructural compounds (IV) containing the new (Ag4I8)4‐ cluster anion crystallize in the triclinic space group P1 with Z=1.
ChemInform Abstract: nJ(29Si‐13C) Coupling Constants and 13/12C Isotope Shifts in 29Si NMR Spectra of Ethynylsilanes.
Authors: LIEPINS E. , BIRGELE I. , LUKEVICS E. , BOGORADOVSKII E. T. , ZAVGORODNII V. S. 
Published: May 2016

AbstractThe examination of 22 title compounds such as (I) shows that there is a linear correlation between the isotope shifts and coupling constants.
ChemInform Abstract: Strain, Orbital Interaction, and Conformation of Propella(34)prismane and Its Precursor Diolefin. Analysis of Orbital Interactions in Cycloocta‐1,5‐diene and Cyclodeca‐1,6‐diene with AM1 MO Method.
Authors: OSAWA E. , RUDZINSKI J. M. , XUN Y.‐M. 
Published: May 2016

AbstractTo get insight into the factors influencing the successful intramolecular (2 + 2) photochemical ring closure reaction of (I) to give (II) (recently reported), though its lower homologue (III) does not at all undergo such a reaction, a range of calculations is performed on all compounds (I)‐(IX).
ChemInform Abstract: Upon the Hydrogen‐Bonding Ability of the H4 and H5 Protons of the Imidazolium Cation.
Authors: ABDUL‐SADA A. K. , AL‐JUAID S. , GREENWAY A. M. , HITCHCOCK P. B. , HOWELLS M. J. , SEDDON K. R. , WELTON T. 
Published: May 2016

AbstractThe crystal and molecular structures of (Ia), (Ib), and (Ic) (all space group P21/c with Z=4) all contain evidence that the H(4) and H(5) protons of the imidazolium cation enter into hydrogen bonds; the implications of this observation for the interactions in room‐temp.
ChemInform Abstract: (R,R)‐2,3‐Butanediol and (s)‐Pinanediol Allylboronates in Chiral Synthesis of (2S,3S)‐3‐Methyl‐5‐hexen‐2‐ol.
Authors: MATTESON D. S. , CAMPBELL J. D. 
Published: May 2016

AbstractPinanediol methoxyboronate (I) is treated with allylmagnesium bromide (II), yielding the corresponding allyl boronate (III).
ChemInform Abstract: Stereoselective Conjugate Addition of TMSI‐Activated Butylcopper to 1‐(R)‐endo‐(1‐Naphthyl)bornyl Crotonate.
Authors: BERGDAHL M. , NILSSON M. , OLSSON T. 
Published: May 2016

AbstractAt ‐60 °C the compound (S)‐(III) is formed.
ChemInform Abstract: Reaction of Carbonyl Compounds with Ethyl Lithiodiazoacetate. Studies Dealing with the Rhodium(II)‐Catalyzed Behavior of the Resulting Adducts.
Authors: PADWA A. , KULKARNI Y. S. , ZHANG Z. 
Published: May 2016

AbstractThe 2‐diazo‐4‐phthalimidobutyrate (V), prepared as outlined in the reaction scheme, is converted into the carbenoid intermediate (VI) upon treatment with catalytic amounts of rhodium(II) octanoate.
ChemInform Abstract: Synthesis of Cyclic α‐Amino Acids Through Ring Closure of Glycine‐Derived Free Radicals.
Authors: ESCH P. M. , HIEMSTRA H. , SPECKAMP W. N. 
Published: May 2016

AbstractThe carbamates (I) are converted to the phenyl thioethers (VI) which react with tri‐n‐butylstannane in the presence of AIBN as the catalyst to give cyclic amines in most cases as outlined in the reaction scheme.
ChemInform Abstract: Stereoselective Formation of Allylic Sulfides via Two Sequential (3,3)Sigmatropic Rearrangements of Allylic Xanthates and Its Mechanistic Aspects.
Authors: HARANO K. , OHIZUMI N. , MISAKA K. , YAMASHIRO S. , HISANO T. 
Published: May 2016

AbstractPyrolysis of allylic xanthates such as (I) forms the dithiocarbonates (II) as intermediates via (3,3)sigmatropic rearrangement.
ChemInform Abstract: Effect of a Proximate Phenyl Ring on Additions to Bridged Ketones.
Authors: PEERAN M. , WILT J. W. , TUFANO M. D. , SUBRAMANIAN R. , CRUMRINE D. S. 
Published: May 2016

AbstractThe tricyclic ketones (II) and (V) react with the Wittig reagent derived from the phosphonium salt (III) to give the corresponding alkenes (IV) and (VI).
ChemInform Abstract: C4O2 (1,2,3‐Butatriene‐1,4‐dione), the First Dioxide of Carbon with an Even Number of C Atoms.
Authors: MAIER G. , REISENAUER H. P. , BALLI H. , BRANDT W. , JANOSCHEK R. 
Published: May 2016

AbstractPhotolysis of the diazoketones (III) and (VI) in argon matrix at 254 nm generates the title compound (IV) (stable under matrix conditions) which is readily cleaved photochemically (> 300 nm) into C3O (VII) + CO.
ChemInform Abstract: Oxidation of 2‐Chloroethyl Sulfides to Sulfoxides by Dimethyl Sulfoxide.
Authors: HSU F.‐L. , SZAFRANIEC L. L. , BEAUDRY W. T. , YANG Y.‐C. 
Published: May 2016

Abstract2‐Chloroethyl sulfides such as (I) are oxidized with DMSO, forming the sulfoxides (III) and (IV).
ChemInform Abstract: Amidines. Part 1. Hydrolysis of N1‐Acyl‐ and N1‐Tosyl‐N1,N2‐diarylamidines.
Authors: ONO M. , TAMURA S. 
Published: May 2016

AbstractAcidic hydrolysis of the N‐acylamidines (III), prepared by coupling of the diarylamidines (II) with benzoyl chloride (I), leads to the formation of the amides (IV) and (V), the urea (VIa), and the anilines (VII).
ChemInform Abstract: Transmission of Polar Effects. Part 20. Ionisation and Esterification, with Diazodiphenylmethane, of a Series of 8‐(2‐Substituted Phenyl)‐1‐naphthoic and 2‐ and 4‐(8‐Substituted 1‐Naphthyl)benzoic Acids.
Authors: BOWDEN K. , GHADIR K. D. F. 
Published: May 2016

AbstractThe reactivity of the novel acid systems (I), (II), and (III) is assessed by measurements of their pKa‐values (in 80% (w/w) Me‐O‐(CH2)2‐OH/H2O at 25 °C) and their rates of esterification with diazodiphenylmethane (IV) to give, e.g., esters (V).
ChemInform Abstract: Nonconventional Friedel‐Crafts Chemistry. Part 1. Reaction of α‐Tetralone and Anthrone with Arenes Under Friedel‐Crafts Conditions.
Authors: EL‐ZOHRY M. F. , EL‐KHAWAGA A. M. 
Published: May 2016

AbstractAlCl3‐catalyzed reaction of the tetralone (II) and the anthrone (IV) with the arenes (I) yields the arylation products (III) and (V).
ChemInform Abstract: Reaction of 2‐Substituted 5,5‐Dimethyl‐4‐oxo‐1‐pyrroline 1‐Oxides with Nucleophilic Reagents and Synthesis of Pyrrolidine‐Derived Nitroxyl Radicals.
Authors: REZNIKOV V. A. , VOLODARSKII L. B. 
Published: May 2016

AbstractThe pyrroline oxides (I) are coupled with hydrazine (IIa) or the hydroxylamines (IIb) and (IIc) to give the hydrazones (IIIa) and (IIIb) or the oximes (IIIc) and (IIId).
ChemInform Abstract: Studies in Spiroheterocycles. Part 25. Synthesis of New Fluorine‐Containing 3′‐Phenylspiro(3H‐indole‐3,2′‐thiazolidine)‐2,4′(1H)‐diones and Novel (2,3‐Dihydro‐2‐oxo‐3‐phenylamino‐1H‐indol‐3‐ylthio)ethanoic Acid as Antibacterial Agents.
Authors: JOSHI K. C. , DANDIA A. , BHAGAT S. 
Published: May 2016

AbstractThe spiro compounds (IV) and (VII) can be obtained in quantitative yield at room temp. under the conditions shown, i.e. with excess mercaptoacetic acid and a prolonged reaction time.
ChemInform Abstract: Mercury(II)‐Mediated Heterocyclization of 2‐Cyclohex‐2′‐enyl‐N‐methylaniline.
Authors: MAJUMDAR K. C. , DE R. N. , SAHA S. 
Published: May 2016

AbstractThe ortho‐cyclohexenylaniline (I) is treated with mercuric acetate in the presence of the alcohols (II) to form the tetrahydrocarbazoles (III).
ChemInform Abstract: Diphenylphosphinoyl‐Substituted Ylides. Part 1. Thermal 1,3‐Dipolar Cycloaddition of α‐(Diphenylphosphinoyl)glycine Ester Imines. Dipole Formation as the Rate‐Determining Step.
Authors: VAN ES J. J. G. S. , JAARSVELD K. , VAN DER GEN A. 
Published: May 2016

AbstractThe phosphine oxide (I) is coupled with the chloroformates (II) to produce the corresponding esters (III).
ChemInform Abstract: Synthesis, X‐Ray Structural Analysis, and Photochemistry of Novel syn‐Periplanar Bisazo‐Skeletons.
Authors: BECKMANN E. , BAHR N. , PRINZBACH H. 
Published: May 2016

AbstractThe tetraacetyldimethylcyclohexene (I) reacts with hydrazine (II) to form the hydrazone (III) which is converted to the cleavage product (IV) upon drying in vacuo.
ChemInform Abstract: A Synthesis of Methylated Epoxyhydroazulenones by Intramolecular (4 + 3) Cycloaddition of an Oxyallyl Intermediate, Generated from 1,1‐Dichloro‐6‐(3‐methyl‐2‐furyl)hexan‐2‐one.
Authors: KAISER R. , FOEHLISCH B. + 
Published: May 2016

AbstractThe azulenones (VI) and (VII) are prepared starting from pentenynol (I).
ChemInform Abstract: Enantiomeric Synthesis of endo‐Substituted Tetrahydropyrans.
Authors: MARTIN V. S. , NUNEZ M. T. , RAMIREZ M. A. , SOLER M. S. 
Published: May 2016

AbstractStarting with the butanediol monotetrahydropyranyl ether (I), the allyl alcohol (IV) is synthesized.
ChemInform Abstract: Reaction of Aromatic N‐Oxides with Dipolarophiles. Part 14. Inverse‐Type Cycloaddition of Pyridine N‐Oxides with 1,4‐Epoxy‐1,4‐dihydronaphthalene and Its Mechanistic Aspects.
Authors: HISANO T. , HARANO K. , MATSUOKA T. , SUZUKI T. , MURAYAMA Y. 
Published: May 2016

Abstract(1,3)Dipolar cycloaddition reaction of the pyridine N‐oxides (I) with the epoxydihydronaphthalene (II) mentioned in the title leads to the formation of the furopyridines (V) via 1,5‐sigmatropic rearrangement of the primary cycloadduct (III).
ChemInform Abstract: Novel Pyrrole Derivatives. Part 3. Preparation of 4‐Amino‐6‐methylthio‐7H‐pyrrolo(2,3‐d)pyrimidine‐5‐carbonitriles.
Authors: PECH R. , BOEHM R. + , HENKEL L. 
Published: May 2016

AbstractChlorination of the pyrimidines (I) at C‐4 with POCl3 under the conditions shown causes concomitant dehydration of the amide group.
ChemInform Abstract: Synthesis of 1‐Acyl‐ and 1‐(Thioacyl)‐4‐benzylpiperazines as Potential Antidepressants.
Authors: KMONICEK V. , SVATEK E. , HOLUBEK J. , RYSKA M. , VALCHAR M. , PROTIVA M. 
Published: May 2016

AbstractSome title compounds (12 examples) are prepared for pharmacological screening.
ChemInform Abstract: 2‐Aza‐1,3‐dienes. Part 6. “tert.‐Amino Effect” on Acidic Treatment of (Pyrrolidin‐1‐yl)azadienes.
Authors: LEGROUX D. , BROM J. , FLEURY J. P. 
Published: May 2016

AbstractThe title compounds (III) and (V) furnish, by a (1,5)‐H shift, the heterocyclic systems (IV) and (VI), resp.; the latter loose HCN spontaneously to give (VII).
ChemInform Abstract: Organoboranes. Part 52. The Successful Ring Enlargement of Boracyclanes via Sequential One‐Carbon Homologation: The First Synthesis of Boracyclanes in the Strained Medium‐Ring Range.
Authors: BROWN H. C. , PHADKE A. S. , RANGAISHENVI M. V. 
Published: May 2016

AbstractOne‐carbon ring expansion of the B‐methoxyboracyclanes (I) is achieved by reaction with chloromethyllithium (II) generated in situ.
ChemInform Abstract: A 1,6‐Diphospha‐1,2,4,5‐hexatetraene, Synthesis and Ring Closure Reactions to Cyclobutenes.
Authors: MAERKL G. + , KREITMEIER P. , NOETH H. + , POLBORN K. 
Published: May 2016

AbstractBy oxidative coupling of a lithiated allene, obtained from (I), the title compound (II) is formed in several stereoisomeric forms together with the yellow unsym. cyclobutene derivative (III) (space group P21/c, Z=4) and the red compound (IV).
ChemInform Abstract: 2‐Mercapto‐(1H)‐1,3,2λ5‐benzodiazaphosphorine‐2,4‐dithiones. Part 1. Synthesis and Spectral Studies.
Authors: SHINDE B. R. , SHENOY S. J. , PAI N. R. 
Published: May 2016

AbstractA series of substituted anthranilamides (cf.
ChemInform Abstract: Reaction of the Diisopropylaminochlorophosphenium Cation with Crotonaldehyde Dimethylhydrazone and Acetone Azine.
Authors: ARIF A. M. , COWLEY A. H. , KREN R. M. , WESTMORELAND D. L. 
Published: May 2016

AbstractReaction of the phosphenium salt (I) with crotonaldehyde dimethylhydrazone (II) gives the cyclic phosphine oxide (III) as a aluminum trichloride complex.
ChemInform Abstract: Dicoordinated Organo‐Arsenic Derivatives. Synthesis and Characterization of New Arsenium Cations with the Linkage N‐As‐N.
Authors: PAYRASTRE C. , MADAULE Y. , WOLF J. G. 
Published: May 2016

AbstractN,N'‐Diethylethylenediamine (I) reacts with butyllithium (II) to give the salt (III) which is cyclized with arsenic trichloride (IV) to produce the chlorodiazarsolidine (V).
ChemInform Abstract: Germanium‐Carbon versus Germanium‐Nitrogen Double‐Bond Formation in the Reactions Between Germylenes and Diazo Compounds.
Authors: GLIDEWELL C. 
Published: May 2016

AbstractThe reactions between methyldiazoacetate (II) and a range of germylenes (8 examples) such as (I) and (V) are studied using MNDO calculations.