bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Regioselective Alkylation in the Course of Aldol Condensation Under Phase‐Transfer Catalytic Conditions.
Authors: GU X.‐P. , IKEDA I. , OKAHARA M.
Published: May 2016

The application of the title reaction to octanal (I) yields β,γ‐olefinic aldehydes (IV) if the halides (II) are employed, while the ether (VII) is obtained in the reaction with (V).
ChemInform Abstract: Conjugate Reduction of α,β‐Unsaturated Ketones with Amphiphilic Reaction Systems.
Authors: NONOSHITA K. , MARUOKA K. , YAMAMOTO H.
Published: May 2016

1,4‐Reduction of α,β‐unsaturated ketones (e.g.
ChemInform Abstract: A New Synthetic Route to Aliphatic and Alicyclic Nitriles via Homolytic Desulfuration of α‐(Dithiocarbamoylthio) Nitriles.
Authors: YANAGAWA M. , MORIYA O. , WATANABE Y. , UENO Y. , ENDO T.
Published: May 2016

As reported previously, eight derivatives of type (V) are prepared by mono‐ or dialkylation of the intermediate (III) in yields ranging from 40 to 93%.
ChemInform Abstract: The Direct Trifluoromethylation of Aryl Chlorides Using Burton′s Reagent.
Authors: CLARK J. H. , MCCLINTON M. A. , BLADE R. J.
Published: May 2016

Reaction of the chlorobenzenes (I) with dibromodifluoromethane (II) and copper in N,N‐dimethylacetamide gives the trifluoromethylbenzenes (III).
ChemInform Abstract: A Simple Preparation of (R)‐(+)‐β‐(3,4,5‐Trimethoxybenzyl)butanolide, and Its Use in the Total Syntheses of Naturally Occurring Dibenzylbutanolide Lignans.
Authors: LALAMI K. , DHAL R. , BROWN E.
Published: May 2016

Resolution of the racemic hemisuccinate (I) and subsequent reduction with calcium borohydride yield the butanolide (R)‐(+)‐(II) which is coupled with the benzylic bromides (III), producing isoyatein (IVa) and cubebinone (IVb).
ChemInform Abstract: Ytterbium Metal‐Promoted Novel Cross‐Coupling Reaction Between Diaryl Ketones and Electrophiles.
Authors: HOU Z. , TAKAMINE K. , AOKI O. , SHIRAISHI H. , FUJIWARA Y. , TANIGUCHI H.
Published: May 2016

The diaryl ketones (I) are coupled with 2‐octanone (II), acetonitrile (V), the oxiranes (VIII), carbon dioxide (X), and tolane (XIII) in the presence of ytterbium and catalytic amounts of methyl iodide to give the 1,2‐diols (III), acyloins (VI), 1,3‐diols (IX), the hydroxy acids (XI), and the allylic alcohol (XIV).
ChemInform Abstract: Phenylsulfonyloxirane: A Versatile Reagent for Organic Synthesis.
Authors: ASHWELL M. , JACKSON R. F. W.
Published: May 2016

Phenylsulfonyloxirane (I) reacts with the halides (II) after lithiation or in the presence of butyllithium, yielding the substituted phenylsulfonyloxiranes (III).
ChemInform Abstract: 2‐Aza‐1,3‐dienes as Novel Precursors for the Synthesis of N‐Unsubstituted β‐Lactams. A Three Step Synthesis of 4‐Acetoxy‐3‐phenoxy‐2‐azetidinone.
Authors: GEORG G. I. , KANT J. , HE P. , LY A. M. , LAMPE L.
Published: May 2016

The azadienes (IV), prepared from the aldehydes (I) and allylamine (II) by basic‐induced rearrangement of the intermediate imines (III), are coupled with the ketenes, derived from acid chlorides (V) to give the azetidinones (VI).
ChemInform Abstract: Synthesis of Amino Acids and Related Compounds. Part 34. Synthesis of Ethyl 2‐(4‐Chlorophenyl)‐5‐(2‐furyl)oxazol‐4‐ylacetate, a Hypolipidemic Agent, and Related Compounds.
Authors: MORIYA T. , SEKI M. , TAKABE S. , MATSUMOTO K. , TAKASHIMA K. , MORI T. , ODAWARA A. , TAKEYAMA S.
Published: May 2016

The N‐(acylmethyl)amides (I) are coupled with the bromoacetate (II) and then subjected to ring closure reaction in the presence of phosphoryl chloride, yielding the oxazol‐4‐ylacetates (IV).
ChemInform Abstract: Synthesis and Diels‐Alder Reactions of 5‐Alkenyl‐1,3‐oxathiole 3‐Oxides. A New Class of Diheterosubstituted 1,3‐Dienes.
Authors: FISHER M. J. , OVERMAN L. E.
Published: May 2016

Coupling of the sulfonium methylide, derived from the salt (I), with the α,β‐unsaturated acyl chlorides (II), produces the ylides (III) which are cyclized to form the oxathiole oxides (IV).
ChemInform Abstract: Stable 2‐Thianaphthalenes: Synthesis and Reactions with Electrophiles.
Authors: HORI M. , KATAOKA T. , SHIMIZU H. , NARITA K. , OHNO S. , OGURA H. , TAKAYANAGI H. , IITAKA Y. , KOYAMA H.
Published: May 2016

The stable and crystalline 2‐thianaphthalene derivatives (II) are synthesized from the salts (I) by proton abstraction and their ylide nature is established on the basis of spectral and chemical evidence.
ChemInform Abstract: Synthesis, Antiinflammatory, and Analgetic Activity of 1,6‐Disubstituted Pipecolinic and 6‐Substituted Picolinic Acid.
Authors: MASTAFANOVA L. I. , ZHIKHAREVA G. P. , KUTINA N. N. , SIROKO A. S. , FAERMARK I. F. , SYUBAEV R. D. , SHVARTS G. YA. , MASHKOVSKII M. D. , YAKHONTOV L. N.
Published: May 2016

The 6‐methylpicolinic acid ester (I) is coupled with 4‐nitrobenzaldehyde (II) to give the nitrostyrylpicolinic acid ester (III) which is reduced, forming the amino derivative (IV).
ChemInform Abstract: (.+‐.)‐4‐tert‐Butyl‐3‐cyano‐1‐(4‐ethynylphenyl)‐2,6,7‐trioxabicyclo‐(2.2.2)octa# ne: Synthesis of a Remarkably Potent GABAA Receptor Antagonist.
Authors: PALMER C. J. , COLE L. M. , CASIDA J. E.
Published: May 2016

The key steps in the synthesis of the title compound (IX) are the Lewis acid‐induced rearrangement of the (p‐iodobenzoyloxy)cyanomethyloxetane (V), in situ obtained from the cyanohydrin of the aldehyde (II), and the subsequent palladium catalyzed coupling of the iodide (VI) with the acetylene (VII).
ChemInform Abstract: Intramolecular Cycloaddition Reactions of Oximes with Vinyl Sulfones.
Authors: PADWA A. , NORMAN B. H.
Published: May 2016

The aldehyde and ketone oximes (II) react with the bis(phenylsulfonyl)butadiene (I) to give the cycloadducts (III).
ChemInform Abstract: On the Borylation of Benzene and Naphthalene by Dehalogenation Products of Dichloro(diisopropylamino)borane.
Authors: MELLER A. , BROMM D. , MARINGGELE W. , BOEHLER D. + , ELTER G.
Published: May 2016

Benzene (I) reacts with the dichloroaminoborane (II) in the presence of Na/K alloy to give the two carboranes (III) and (IV), together with a number of unidentified products (V).
ChemInform Abstract: One‐Pot Synthesis of 3,4‐Bis(methoxycarbonyl)‐2‐trimethylsilylfurans by Diels‐Alder Reaction.
Authors: TANAKA A. , HARIGAYA Y. , NISHINO N. , NAKAYAMA K.
Published: May 2016

Heating the trimethylsilylfurans (I) with dimethyl acetylenedicarboxylate (II) without solvents produces directly the silylfurandicarboxylates (III).
ChemInform Abstract: Reaction of Cyclic Silyl Phosphites with Haloacetones.
Authors: MORITA I. , CHOKAI S. , TSUDA M. , KISE M. , SUGIYAMA M.
Published: May 2016

The cyclic silyl phosphites (III), prepared from the phosphites (I) and hexamethyldisilazane (II), react with iodoacetone (IV) in the presence of scavengers of trimethylsilyl halides such as propylene oxide to give the acetonylphosphonates (V), together with the propenyl phosphates (VI).
ChemInform Abstract: On the Synthesis and Structure of New Penta and Hexacoordinated Organotin Compounds.
Authors: JURKSCHAT K. , KALBITZ J. , DARGATZ M. , KLEINPETER E. , TZSCHACH A.
Published: May 2016

The Grignard reagent, derived from the bis(3‐chloropropyl)ethylenediamine (I), reacts with SnCl4 (II) to form the tricyclic organotin compound (III).
ChemInform Abstract: Preparation and Crystal Structures of (AsPh4)4(Tc4N4O2(ox)6) and (AsPh4)2(TcO(ox)2(Hox))·3 H2O: Technetium Complexes Containing Quadridentate or Unidentate Oxalato Ligands.
Authors: BALDAS J. , COLMANET S. F. , MACKAY M. F.
Published: May 2016

The tetrameric complex (III) with both bridging oxo and bridging quadridentate oxalato groups crystallizes in the space group P21/n with Z=4.
ChemInform Abstract: Synthesis of the First Example of a 1,3,4,6‐Tetraphosphahexatriene Complex.
Authors: GALINDO DEL POZO A. , CAMINADE A.‐M. , DAHAN F. , MAJORAL J.‐P. , MATHIEU R.
Published: May 2016

The phosphorus dichlorides (I) undergo coupling reaction in the presence of the iron hydrido complex (II), forming the tetraphosphahexatriene complex (III), together with the iron complexes (IV).
ChemInform Abstract: Lewis‐Base Adducts of Group 11 Metal(I) Compounds. Part 39. A Novel Series of 1:1, 2:1, and 3:1 Heterobimetallic Adducts from the Reaction of Copper(I) Halides with Tris(dithiocarbamato)cobalt(III) Complexes.
Authors: ENGELHARDT L. M. , HEALY P. C. , SHEPHARD R. M. , SKELTON B. W. , WHITE A. H.
Published: May 2016

Dilute solutions of Co(S2CNEt2)3 in MeCN form on standing over solid CuBr, after a period of days, the complex (I), which crystallizes in C2/c with Z=4.
ChemInform Abstract: Coordinative Abilities of Ligands Which Favor S,S Chelation: Copper(I) Halide Complexes of N,N′‐Diphenyldithiomalonamide. The Crystal and Molecular Structure of Bis(N,N′‐diphenyldithiomalonamide)copper(I) Iodide‐Methanol (2/1).
Authors: BATTAGLIA L. P. , BONAMARTINI CORRADI A. , MARZOTTO A. , MENABUE L. , PELLACANI G. C.
Published: May 2016

The IR, 1H and 13C NMR spectroscopic properties of the complexes (I) are discussed in the light of the results of an X‐ray structure analysis of (Ia) (space group P1, Z=2).
ChemInform Abstract: Synthesis of New Heteronuclear Complexes with Bridging Carbyne Ligands Between Tungsten and Gold. X‐Ray Crystal Structure of (AuW(μ‐CC6H4Me‐4)(CO)2(bipy)(C6F5)Br).
Authors: CARRIEDO G. A. , RIERA V. , SANCHEZ G. , SOLANS X.
Published: May 2016

The reactions of the carbyne‐W complexes (I) and (IV) with the perfluorophenyl‐Au(I) complex (II) or of (IV) with AuCl(tetrahydrothiophene) lead to the WAu complexes (III) and (V).
ChemInform Abstract: Tetrazolate Rhodium(I) Complexes. Crystal Structures of the Trinuclear Complexes (Rh3(μ3‐ttz)(μ‐Cl)Cl(cod)2(CO)2) (ttz: tetrazolate, cod: cycloocta‐1,5‐diene) and (Rh3(μ3‐ttz)(μ‐Cl)Cl(CO)6), an Unusual Example of Metal‐Metal Interactions.
Authors: ORO L. A. , PINILLOS M. T. , TEJEL C. , APREDA M. C. , FOCES‐FOCES C. , CANO F. H.
Published: May 2016

The homo‐ and hetero‐bridged binuclear complexes (III), (V), (VII) and (IX) are prepared as shown in the scheme.
ChemInform Abstract: Pyrazine‐Bridged Complexes. Synthesis of and Spectroscopic Studies on Binuclear Pyrazine Complexes of Osmium, Ruthenium, and Rhodium Ammines.
Authors: LAY P. A. , MAGNUSON R. H. , TAUBE H.
Published: May 2016

The Os dimer (III) is isolated as its hexachloride; it can be reduced electrochemically or chemically in two steps, with (Ru(NH3)6)2+ as the reducing agent, the +5 cation and with Zn‐Hg the +4 cation is generated.
ChemInform Abstract: Functionalized Isocyanides as Ligands. Part 5. Syntheses and Reactions of 3‐(Benzylphosphonio)indolin‐2‐ylidene Complexes of Platinum(II). X‐Ray Crystal Structure of Cyclic trans‐(Pt(o‐CN(H)C6H4C(P(CH2Ph)2Ph))X(PPh3)2)BF4·2 C2H4Cl2 (X: Cl or Br).
Authors: MICHELIN R. A. , MOZZON M. , FACCHIN G. , BRAGA D. , SABATINO P.
Published: May 2016

The benzylphosphonium‐substituted isocyanides (III) prepared as shown react with a cis/trans mixture of the Pt complex (IV) and NaBF4 to give the cationic trans‐complexes (V).
ChemInform Abstract: Asymmetric Diels‐Alder Reactions. Part 1. Diastereofacial Reactivity of (E)‐3‐Trimethylsilyloxybuta‐1,3‐dienyl 2,3,4,6‐Tetra‐O‐acetyl‐β‐D‐glucopyranoside Toward Cyclic Dienophiles.
Authors: GUPTA R. C. , RAYNOR C. M. , STOODLEY R. J. , SLAWIN A. M. Z. , WILLIAMS D. J.
Published: May 2016

The title diene (I) reacts with the benzoquinones (II), the maleimides (VIIa), (VIIb), or maleic anhydride (VIIc) to give stereoselectively the products (III) and (VIII) the ratios of which with their isomers (IV) or (IXa), (IXb) being 75:25‐89:11.
ChemInform Abstract: Diastereoselective Syntheses of rac‐Slaframine and rac‐6‐epi‐Slaframine.
Authors: DARTMANN M. , FLITSCH W. , KREBS B. , PANDL K. , WESTFECHTEL A.
Published: May 2016

The indolizidinone (IIIa) is isomerized, acetoxylated and hydrogenated to give the product (VII) (space group P21/n with Z=4) which is transformed to 6‐epi‐slaframine (VIII).
ChemInform Abstract: Conformationally Blocked Ergoline Derivatives.
Authors: BALLABIO M. , MALATESTA V. , RUGGIERI D. , TEMPERILLI A.
Published: May 2016

Ergoline compounds are capable of binding to adrenergic, dopaminergic and serotoninergic receptors.
ChemInform Abstract: A New Synthesis of (‐)‐Isoretronecanol and (‐)‐Trachelanthamidine Through Orthoester Claisen Rearrangement for Allylic Alcohol Functionality Tagged at C(2) of Pyrrolidine as a Key Step.
Authors: MORIWAKE T. , HAMANO S. , SAITO S.
Published: May 2016

The allylic alcohol (IV), prepared from the protected proline ester (II), reacts with triethyl orthoacetate (V) to give the products (VI) due to Claisen rearrangement.
ChemInform Abstract: Glass Formation in the TeO2‐MoO3‐CeO2 System.
Authors: DIMITRIEV Y. , BART J. C. J. , IVANOVA I. , DIMITROV V.
Published: May 2016

The title system is characterized by a limited glass formation range of up to 30 mol% CeO2.
ChemInform Abstract: Steady‐State Photocapacitance Study of Semiconductor/Electrolyte Junctions. Part 2. Surface State Distribution and Charge Transfer Mechanisms.
Authors: ALLONGUE P.
Published: May 2016

A novel method is presented being based upon photocapacitance measurements without (single beam experiment) or with added interband illumination (dual beam experiment), which allows the determination of the surface state distribution at GaAs/electrolyte interfaces and to follow its evolution during electrochemical processes.
ChemInform Abstract: The Reactions of NO3 with OH and H.
Authors: BOODAGHIANS R. B. , CANOSA‐MAS C. E. , CARPENTER P. J. , WAYNE R. P.
Published: May 2016

The oxygen‐atom transfer reactions shown in the scheme are investigated using a discharge‐flow technique with resonance fluorescence detection of OH.
ChemInform Abstract: Steric Effects vs. Secondary Orbital Interactions in Nitrone Cycloadditions. Steric Effects in Cycloreversions of Isoxazolidines.
Authors: BURDISSO M. , GAMBA A. , GANDOLFI R. , OBERTI R.
Published: May 2016

In the course of a reinvestigation of results reported earlier by Huisgen, the cycloaddition of the nitrone (I) with a number of alkenes such as (II) and (V) is studied.
ChemInform Abstract: A Novel, Base‐Induced Fragmentation of Hantzsch‐Type 4‐Aryl‐1,4‐dihydropyridines.
Authors: MCINALLY T. , TINKER A. C.
Published: May 2016

Hantzsch‐type 1,4‐dihydropyridines such as (I) substituted with highly electron‐deficient aryl groups in the 4‐position undergo an unexpected and ready scission of the inter‐ring bond on treatment with a base in a non‐hydroxylic solvent to give the arene (II) derived from the substituent and the 4‐unsubstituted pyridine (III) (ca.
ChemInform Abstract: Intermolecular Thermal Reaction of Arylnitrenes with Furans.
Authors: BENATI L. , MONTEVECCHI P. C. , TOSELLI M. , SPAGNOLO P.
Published: May 2016

The reaction of arylnitrenes generated from (I), (VIII) and (XIII) with furans (II) generally leads to complex mixtures of products; some of the major identified components are given in the scheme.
ChemInform Abstract: (+)‐(3‐Oxocamphorsulfonyl)oxaziridine as a Highly Stereoselective Reagent for the Oxidation of Sulfides to Chiral Sulfoxides.
Authors: GLAHSL G. , HERRMANN R.
Published: May 2016

The title oxaziridine (II) which is available from the precursor (I) is an efficient reagent for the stereoselective oxidation of sulfides such as (III), (V), (VII), (IX) to sulfoxides such as (IV), (VI), (VIII), (X).
ChemInform Abstract: Carbon Dioxide Reduction via Homogeneous Catalytic Synthesis and Hydrogenation of N,N‐Dimethylformamide.
Authors: SCHREINER S. , YU J. Y. , VASKA L.
Published: May 2016

The reduction of CO2 to a lower‐valent species (< 2+) proceeds in the presence of 15 metal complexes such as (M(H)(Cl)(CO)(PPh3)3) (M: Ru, Os) via DMF (II).
ChemInform Abstract: Asymmetric Catalysis. Part 40. Enantioselective Hydrosilylation of Ketones by Diphenylsilane with (Rh(cod)Cl)2/Pyridinylthiazoline Catalysts.
Authors: BRUNNER H. , KUERZINGER A. +
Published: May 2016

Forty prochiral ketones such as (I) are enantioselectively hydrosilylated with diphenylsilane (II) in the presence of (Rh(cod)Cl)2 and the chiral ligands mentioned in the title.
ChemInform Abstract: Nitrosation by Alkyl Nitrites. Part 2. Kinetics of Reactions in Aqueous Acid Solution with Isopropyl and tert.‐Butyl Nitrites.
Authors: CROOKES M. J. , WILLIAMS D. L. H.
Published: May 2016

The rates of nitrosation of sulfamic acid, HN3, HS‐CH2‐COOH, Cys, Ph‐NH‐Me, and H2N‐CS‐NH2 by isopropyl nitrite are markedly reduced when isopropanol is added.
ChemInform Abstract: Potential (2,3)‐Sigmatropic Rearrangements of Pentafluorophenyl‐aza‐, ‐thio‐, and ‐methylene‐sulfonium Ylides.
Authors: BROOKE G. M. , FERGUSON J. A. K. J.
Published: May 2016

Reaction of complex (III) with the aniline (V) followed by Et3N yields (IV); with N‐methylaniline (VI), however, a mixture of products is obtained with the major component (VII).
ChemInform Abstract: Oxidation Products of Thiourea.
Authors: GATTOW G. , MANZ W.
Published: May 2016

The products (I) and (III) are studied in detail (UV/VIS, IR, 1H, 13C NMR, MS).
ChemInform Abstract: New Processes for the Halofluorination of Norbornadiene. Structural Reexamination of the Products. Evidence for Exclusive Exo Attack by Electrophiles.
Authors: ALVERNHE G. , ANKER D. , LAURENT A. , HAUFE G. , BEGUIN C.
Published: May 2016

Whereas with NBS and Olah's reagent (Py·(HF)x) in Et2O or CH2Cl2 only (IIa) and (IIb) (ca.
ChemInform Abstract: Oxidation of Thiol with 5‐Arylidene‐1,3‐dimethylbarbituric Acid: Application to Synthesis of Unsymmetrical Disulfide.
Authors: TANAKA K. , CHEN X. , YONEDA F.
Published: May 2016

The barbituric acid derivative (II) oxidizes the mercaptans (I) and the disulfides (III) are formed.
ChemInform Abstract: Synthesis of 4‐Benzoyl‐4‐methylcyclohexa‐2,5‐dienone and Its Benzoyl Substituted Derivatives: Isolated 4‐Acylcyclohexa‐2,5‐dienones.
Authors: JACKSON L. B. , WARING A. J.
Published: May 2016

4‐Acylcyclohexa‐2,5‐dienones are postulated as instable intermediates in the acid‐induced, thermal Fries rearrangement equilibrium between aryl carboxylates and 2‐ and 4‐acylphenols.
ChemInform Abstract: Syntheses of Dibenzofuran‐Type and Dinaphthofuranquinone‐Type Fused Furans.
Authors: ISHIKAWA S. , HINOSHITA H. , TAKAGI M. , UENO K.
Published: May 2016

The fused furans mentioned in the title, e.g. (III), (IV), or (VII), are prepared either by oxidative coupling of phenols such as (I) followed by dehydrative cyclization of (II) and aluminum trichloride‐induced dealkylation, or by cyclocondensation of phenols such as (V) with the dichloroquinone (VI).
ChemInform Abstract: Syntheses of Benzoquinone‐Anellated Furans and Nitration of Fused Furans.
Authors: ISHIKAWA S. , TAKAGI M.
Published: May 2016

Cycloaddition of the phenol (I) with chloranil (II) yields the fused furan (III).
ChemInform Abstract: Thermal Condensation Reactions of Phthalimide with Malonic Acid.
Authors: KOPRANENKOV V. N. , MAKAROVA E. A. , LIK'YANETS E. A.
Published: May 2016

Potassium phthalimide (I) reacts with malonic acid (II) in the presence of zinc acetate to give the isoindolinylidenemethylisoindole (III) or the zinc complex (IV) of the tetramer depending on the reaction temperature.
ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reactions of Pyrazolidinium Ylides with Vinyl Sulfones. A Regioselective Synthesis of Bicyclic Pyrazolidinone Antibacterial Agents.
Authors: JUNGHEIM L. N. , BARNETT C. J. , GRAY J. E. , HORCHER L. H. , SHEPHERD T. A. , SIGMUND S. K.
Published: May 2016

The ylide (III) generated in situ from (I) reacts with the E‐vinyl sulfones (IV) to give the bicyclic pyrazolidiones (V) in a highly regioselective fashion.
ChemInform Abstract: Reactions of Chlorosulfonylbenzylidenehydantoins.
Authors: CREMYLN R. , JETHWA S. , JOINER G. , WHITE D.
Published: May 2016

The benzylidenehydantoins (I) and the cinnamylidenehydantoin (IV), the synthesis of which is described, are converted into the corresponding p‐sulfonyl chlorides (III) and (V) by reaction with chlorosulfonic acid.
ChemInform Abstract: Synthesis of Substituted 3‐Cyano‐2(1H)‐pyridinethiones(selenones) and Thiazolo(selenazolo)(3,2‐a)pyridinium Salts.
Authors: SHESTOPALOV A. M. , RODINOVSKAYA L. A. , SHARANIN YU. A. , LITVINOV V. P.
Published: May 2016

The β‐enamino ketones (I) react with the cyanothio(seleno)acetamides (II) regioselectively to give the 2(1H)‐pyridinethiones(selenones) (III).
ChemInform Abstract: Studies on Condensed Polycyclic Aromatic Compounds Having Photochromic Properties. Part 2. Synthesis and Photochromic Properties of Methyl Derivatives of Benzo(1,2,3‐kl:4,5,6‐k′l′)dixanthene and Their Endoperoxides.
Authors: TOKITA S. , ARAI T. , TOYA M. , NISHI H.
Published: May 2016

Coupling of the dichloroanthraquinone (I) with the potassium phenoxides (II) yields the diphenoxy derivatives (III) which are subjected to thermal cyclization, forming the methylated benzodixanthenes (IV).
ChemInform Abstract: Azo Bridges from Azines. Part 8. (3,3) Valence‐Isomeric Azo‐Bridged Carbocycles and Cyclic Hydrazones: Intramolecular (3 + 2) Cycloadditions and (4 + 2) Cycloreversions Through N‐Methylation.
Authors: BECK K. , HUENIG S. + , REINOLD P.
Published: May 2016

Unsaturated azo‐bridged compounds such as (I), (VI), (XI) are easily methylated by Me3O+BF4‐ (II) to give stable salts such as (III), (VII), or (XII)/(XIII), whereas cycloreversion takes place yielding the product (IX) when the carbocycle (VIII) is treated with (II) under similar conditions.
ChemInform Abstract: The Synthesis and Transformations of 9H‐Imidazo(1,2‐b)pyrazolo(4,3‐d)pyridazine and 9H‐Pyrazolo(4,3‐d)‐s‐triazolo(4,3‐b)pyridazine Derivatives.
Authors: STANOVNIK B. , FURLAN B. , KUPPER M. , MALEZ L. , STIMAC A. , TISLER M. , ZLICAR M.
Published: May 2016

The imidazopyrazolopyridazines (III), prepared from (I) and 2‐diazopropane (II), react with some nucleophiles, e.g. (IV), or electrophilic reagents to form the corresponding substituted derivatives such as (V), (VII), or (VIII).
ChemInform Abstract: Conversion of Thiochroman‐4‐one into the Corresponding Spirothiazole and Pyrimidine Derivatives.
Authors: JOSHI B. C. , GOGIA S. , KISHORE D.
Published: May 2016

Reaction of thiochroman‐4‐one (I) with cysteine (II) gives the thiazoline derivative (III).
ChemInform Abstract: Synthesis and Antibacterial Activity of 6‐Difluoromethoxy‐7‐piperazinyl‐3‐quinolinecarboxylic Acid Derivatives.
Authors: KRISHNAN R. , LANG S. A. JUN.
Published: May 2016

The synthesis of the desired quinoline derivatives (XII) mentioned in the title starts with a conventional preparation of the aniline derivative (IV) which is coupled with the methylenemalonate (V) and then thermally cyclized to give the quinolinone nucleus (VII).
ChemInform Abstract: Studies on Pyran Derivatives. Part 123. Oxabenzomorphanes: Synthesis of CNS‐Effective Hexahydro‐2,7‐methano‐1,5‐benzoxazonines.
Authors: EIDEN F. , GMEINER P.
Published: May 2016

Reaction of the benzoxocin (I) with HN3 generated in situ produces the benzoxazonines (III) and (IVa), together with the azepinones (Va) and (Vb).
ChemInform Abstract: Thermal Transformations of Phosphorylated N‐Vinylphthalimide.
Authors: ROZINOV V. G. , IZHBOLDINA L. P. , DONSKIKH V. I. , DOLGUSHIN G. V. , RATOVSKII G. V.
Published: May 2016

The phosphonium salt (III), prepared in situ from N‐vinylphthalimide (I) and phosphorus pentachloride (II), is converted to the phosphonic dichloride (IV) on thermal treatment.
ChemInform Abstract: Synthesis of 12‐Phenyl‐12‐thioxo‐12‐phosphatetracyclo‐(8.6.1.05,9.01,13)heptadecan‐4,17‐dione.
Authors: BUTIN B. M. , OMAROV T. T. , IL'YASOV R. N. , ERZHANOV K. B.
Published: May 2016

Reaction of the cyclopentene (I) with the phosphine (II) and subsequent treatment with elemental sulfur (III) yield the title compound (IV).
ChemInform Abstract: Preparation of β‐Hydroxyphostones by Thermolysis of Dialkyl 2,3‐Dihydroxyalkylphosphonates.
Authors: PONDAVENRAPHALEN A. , STURTZ G.
Published: May 2016

Refluxing the diastereomeric diethyl 2,3‐dihydroxyalkylphosphonates (I) and (IV) in DMF results in intramolecular ring closure, producing equimolar mixtures of the epimeric 1,2‐oxaphospholanes (β‐hydroxyphostones) (II) and (III) or (V) and (VI).
ChemInform Abstract: On the Reactivity of Phospholene‐Dichlorocarbene Adducts: Ring Expansion Effected by Mercury Acetate.
Authors: KEGLEVICH G. , JANKE F. , PETNEHAZY I. , SZOELLOSY A. + , MIKLOS P. , TOTH G. , TOKE L.
Published: May 2016

The phospholene ‐ dichlorocarbene adducts (Ia) and (Ib) react with mercuric acetate (II) in glacial acetic acid under ring‐opening to yield mixtures of the diastereomeric phosphinine 1‐oxides (III) and (IV), together with the regioisomers (V).
ChemInform Abstract: Organo‐Arsenic Compounds with an As=N Bond. Part 13. Investigation of the Tautomerism of As,As,N,N′‐Tetraarylarsinimidic Amides.
Authors: KOKOREV G. I. , YAMBUSHEV F. D. , AL'METKINA L. A.
Published: May 2016

The trichloroarsorane (I) is coupled with equimolar mixtures of the anilines (II) and (III) to give the symmetric (IV) and (V) and the asymmetric arsinimidic amides (VI).
ChemInform Abstract: A New Type of Selenium Heterocycle: Tetrachlorobenzo‐1,2,3‐triselenole.
Authors: HUMPHIRES R. E. , MASSEY A. G.
Published: May 2016

Heating of the trimercuronin (V) with excess selenium (VI) in a sealed tube leads to the formation of the selenanthrene (VII) and of tetrachlorobenzo‐1,2,3‐triselenole (VIII).
ChemInform Abstract: Reaction of Sulfur Ylides with Elemental Sulfur and Selenium. Aspects and Mechanistic Considerations.
Authors: NAKAYAMA J. , AKIMOTO K. , HOSHINO M.
Published: May 2016

Reaction of the sulfonium ylides (I) with sulfur or selenium produces the olefins (II) via the intermediate thio‐ or selenocarbonyl compounds.
ChemInform Abstract: Structure of a Manganese(II) Complex of a New N,O‐Bidentate 1,5‐Benzodiazepine Derivative Synthesized via Metal Ion Promoted Oxidation of a Methyl Group.
Authors: SZEVERENYI Z. , FUELOEP V. + , KALMAN A. , SIMANDI L. I.
Published: May 2016

The structure of the Mn(II) complex (III) (space group P21/n, Z=4) is confirmed by X‐ray analysis.
ChemInform Abstract: Preparation, Structure and Properties of Dicyano Silver Complexes of the M(en)3Ag2(CN)4 and M(en)2Ag2(CN)4 Type.
Authors: KAPPENSTEIN C. , OUALI A. , GUERIN M. , CERNAK J. , CHOMIC J.
Published: May 2016

The reaction of solutions of Ni acetate, en and K(Ag(CN)2) (1:10:2) yield the complex (I), which crystallizes in C2/c with Z=4.
ChemInform Abstract: The Reaction of Bis(isopropylphosphino)methane with Ruthenium Carbonyl.
Authors: RADECKA‐PARYZEK W. , PUDDEPHATT R. J.
Published: May 2016

Substitution of (I) to yield (III) and (IV) occurs under conditions as mild as possible in the catalytic reaction described.
ChemInform Abstract: Synthesis and NMR Assignments of Some Platinum(II) Complexes of 3‐Aryl‐5,5‐dimethyl‐2‐pyrazolines.
Authors: AL‐ALLAF T. A. K. , AYOUB M. T. , AL‐BAYATI R. I. H.
Published: May 2016

The title complexes (III) are prepared in an attempt to obtain analogues of biologically active cis‐Pt(II) complexes.
ChemInform Abstract: Syntheses of Steroidal Bromotetrazoles.
Authors: SHAFIULLAH SHAFIULLAH , SIDDIQUI I. H.
Published: May 2016

Treatment of the α‐bromo keto steroids (I) with excess hydrazoic acid (II) results in the formation of the corresponding steroidal tetrazoles (III).
ChemInform Abstract: Efficient 1,4‐Asymmetric Induction Utilizing Electrostatic Interaction Between Ligand and Substrate in the Asymmetric Hydrogenation of Didehydrodipeptides.
Authors: YAMAGISHI T. , IKEDA S. , YATAGAI M. , YAMAGUCHI M. , HIDA M.
Published: May 2016

The ligand (VI) provides a very effective Rh(I) catalyst system which enables high asym.
ChemInform Abstract: Synthetic Studies of Didemnins. Part 3. Syntheses of Statine and Isostatine Stereoisomers.
Authors: HARRIS B. D. , JOULLIE M. M.
Published: May 2016

The reduction of four β‐keto esters of type (IV) by various reducing agents is examined; the best results are obtained by using KBH4 (discussion of possible transition states).
ChemInform Abstract: Redox Reactions in Condensed Oxide Systems. Part 8. The Mechanism of Spinel Formation in the System ZnxMn3‐xO4
Authors: FELTZ A. , JAEGER M. + , VOELKSCH G. +
Published: May 2016

is investigated in ZnO/Mn3O4 and ZnO/α‐Mn2O3 sintering compacts by determination of the chemical diffusion coefficients.
ChemInform Abstract: Metal Oxides as Heterogeneous Catalysts for Oxygen Evolution under Photochemical Conditions.
Authors: HARRIMAN A. , PICKERING I. J. , THOMAS J. M. , CHRISTENSEN P. A.
Published: May 2016

The catalytic activity of dispersed powders of a variety of metal oxides (18 samples) for the oxidation of water to O2 under photochemical conditions are studied.
ChemInform Abstract: Tin‐119 NMR Studies on Diorganotin(IV)dihalides and Triorganotin(IV)halides. Formation and Stereochemistry of Adducts.
Authors: COLTON R. , DAKTERNIEKS D.
Published: May 2016

The compounds (I) form only 1:1 adducts with excess halide and with phosphines (PBu3, P(C6H11)3), but form both 1:1 and 1:2 adducts with POBu3.
ChemInform Abstract: Ovothiols as Biological Antioxidants. The Thiol Groups of Ovothiol and Glutathione are Chemically Distinct.
Authors: HOLLER T. P. , HOPKINS P. B.
Published: May 2016

The differences between the thiol functions of glutathione and mercaptoimidazole (I) as a model of ovothiols are investigated (protonation states, nucleophilicity, one‐electron donating ability against ferrichrome c (kinetics) of (I)).
ChemInform Abstract: Boron Compounds. Part 83. Organosubstituted 2,5‐Dihydro‐1,2,5‐phosphasilaboroles. Preparation, Characterization, and Transformations.
Authors: KOESTER R. + , SEIDEL G. , MUELLER G. + , BOESE G. , WRACKMEYER B.
Published: May 2016

The dimeric title compounds (III) are prepared from the acyclic derivatives (I) with dilithiumphenylphosphide (II).
ChemInform Abstract: Synthesis of β‐Silyl Ketones via Reaction of Trimethylsilyllithium with Unsaturated Hydrazones. Application to the Synthesis of Brevicomin.
Authors: HUDRLIK P. F. , HUDRLIK A. M. , YIMENU T. , WAUGH M. A. , NAGENDRAPPA G.
Published: May 2016

In contrast to the corresponding enolate, the metalloenamine obtained from (IV) + (II) undergoes α‐alkylation in a regio‐ and stereoselective fashion even with less reactive electrophiles such as (III) and (V), thus giving access to the desired trans‐α‐alkyl‐β‐silyl ketones (six examples given).
ChemInform Abstract: Highly Substituted 1‐tert.‐Butyl‐1‐silacyclohexadienes.
Authors: JUTZI P. , MEYER M.
Published: May 2016

The synthesis of 1‐tert.‐butyl‐1‐silacyclohexadienes which are substituted in 1‐, 2‐, 4‐, and 6‐position is shown in the scheme.
ChemInform Abstract: 1‐Halophosphorinanes: Synthesis and Derivatives.
Authors: HACKLIN H. , ROESCHENTHALER G.‐V. +
Published: May 2016

The Grignard compound, derived from 1,5‐dibromopentane (I), reacts with the phosphoramidous dichloride (II) to form the phosphorinane (III).
ChemInform Abstract: Stereoselective Formation of syn‐ and anti‐Dicarbonyl(1‐methyl‐η3‐2‐propenyl)nitrosyliron and the Structure of syn‐Carbonyl(1‐methyl‐η3‐2‐propenyl)nitrosyl(triphenylphosphane)iron.
Authors: EBERHARDT U. , MATTERN G.
Published: May 2016

The pure E‐compound (I) reacts with the Fe complex (II) to give the syn‐complex (III) which on reaction with the anion of dimethyl malonate affords (V), where the double‐bond geometry of the educt is retained, together with (VI).
ChemInform Abstract: Synthesis and Characterization of Two Isomers of Os3(CO)10(C5H4N‐2‐C(H)=N‐R) and the Conversion to ortho‐Metalated HOs3(C5H3N‐2‐C(H)=N‐R)(CO)9. Part 3. X‐Ray Structure of HOs3(C5H3N‐2‐C(H)=N‐iPr)(CO)9.
Authors: ZOET R. , VAN KOTEN G. , VRIEZE K. , DUISENBERG A. J. M. , SPEK A. L.
Published: May 2016

The reaction of (I) with the pyridine‐2‐carbaldimines (II) yields two isomers (III) and (IV) that differ in the bonding of the ligand to the Os3(CO)10 unit.
ChemInform Abstract: Prostaglandin Synthesis. Part 16. The Three‐Component Synthesis of Prostaglandins.
Authors: SUZUKI M. , YANAGISAWA A. , NOYORI R.
Published: May 2016

A convergent one‐pot construction of the acetylenic prostaglandin (PG) framework (IV) is accomplished by the organocopper‐mediated conjugate addition of the ω side‐chain unit (II) to the protected cyclopentenone (I) followed by trapping of the enolate intermediate by the alkyl iodide (III); transmetalation with use of triphenyltin chloride at the enolate stage serves as key operation for this coupling procedure.
ChemInform Abstract: Triply Convergent Synthesis of (‐)‐Prostaglandin E2 Methyl Ester.
Authors: JOHNSON C. R. , PENNING T. D.
Published: May 2016

Starting from cyclopentadiene (I), a six‐step procedure involving asymmetric semihydrolysis of the meso‐diacetate (V) leads to the optically active enone (+)‐(VII).
ChemInform Abstract: Enantioselective Synthesis Through Microbial Oxidation of Arenes. Part 1. Efficient Preparation of Terpene and Prostanoid Synthons.
Authors: HUDLICKY T. , LUNA H. , BARBIERI G. , KWART L. D.
Published: May 2016

Enantioselective oxidation of the benzenes (I) affords the cis diols (II), whose utility in the synthesis of optically pure natural products is discussed (yields in g).
ChemInform Abstract: EPR Characterization of Ti3+ Ions at the Metal‐Support Interface in Pt/TiO2 Catalysts.
Authors: BONNEVIOT L. , HALLER G. L.
Published: May 2016

Pt/TiO2 catalysts of 0.44 and 1.0 wt% loading are prepared by cation exchange and reduced at 513, 573, or 773 K and their EPR spectra are recorded at 17 K. Four different Ti3+ species are detected.
ChemInform Abstract: The Surface Chemistry of Molybdena‐Alumina Catalysts Reduced in H2 at Elevated Temperatures
Authors: REDEY A. , GOLDWASSER J. , HALL W. K.
Published: May 2016

(500‐900 °C) is studied by measurements of the chemisorption of NO and O2 and of the catalytic activity for the hydrogenation of benzene.
ChemInform Abstract: Photocatalytic Deposition of Silver on Powder Titania: Consequences for the Recovery of Silver.
Authors: HERRMANN J.‐M. , DISDIER J. , PICHAT P.
Published: May 2016

The effects of various parameters on the photoassisted reduction of Ag+ to metallic deposits on powdered TiO2 is studied.
ChemInform Abstract: Study of an Ordered Mixed Oxo Salt by Thermal and Vibrational Analysis: (NH4)2H3AsO4SO4.
Authors: BOTTO I. L.
Published: May 2016

The title compound is obtained from a stoichiometric solution of ammonium sulfate and arsenic acid and studied by DTA, TG, XRD, as well as IR and Raman spectroscopy.
ChemInform Abstract: Crystal and Molecular Structure, Magnetic Properties, and EPR Spectra of a Trinuclear Copper(II) Complex with Bridging Nitronyl Nitroxides.
Authors: CANESCHI A. , GATTESCHI D. , SESSOLI R. , HOFFMANN S. K. , LAUGIER J. , REY P.
Published: May 2016

The title compound (III) crystallizes in P21/c with Z=4.
ChemInform Abstract: Anisotropic Exchange in Dinuclear Complexes with Polyatomic Bridges. Part 2. Crystal and Molecular Structure and EPR Spectra of Tetraphenylphosphonium Bis(μ‐pyrazolato)bis(dihydrobis(1‐pyrazolyl)borato)(μ‐chloro)dicuprate(II# ). Magneto‐Structural Correlations in Bis(μ‐pyrazolato)‐Bridged Copper(II) Complexes.
Authors: AJO D. , BENCINI A. , MANI F.
Published: May 2016

The title complex (I) is obtained by reaction of hydrated CuCl2 with tetraethylammonium dihydrido(1‐pyrazolyl)borate and PPh4Cl in ethanol (no yield given).
ChemInform Abstract: Energetics of Metal‐Sulfur Bonds in the Complexes M(η5‐C5H5)2(SC2H5)2 (M: Ti, W) and W(η5‐C5H5)2(SC6H5)2. Molecular Structure of Ti(η5‐C5H5)2(SC2H5)2.
Authors: CALHORDA M. J. , CARRONDO M. A. A. F. DE C. T. , DIAS A. R. , FRAZAO C. F. , HURSTHOUSE M. B. , MARTINHO SIMOES J. A. , TEIXEIRA C.
Published: May 2016

Reaction‐solution calorimetric studies of the title complexes lead to Ti‐S‐Et, W‐S‐Et, and W‐S‐Ph bond enthalpies.
ChemInform Abstract: Generation and Cycloadditions of Hydroxy(and Trimethylsiloxy)phenylethynyl Ketene.
Authors: FERNANDEZ M. , POLLART D. J. , MOORE H. W.
Published: May 2016

3,6‐Dimethoxy‐o‐benzoquinone (I) reacts with phenylethynyllithium (II) to form the dialkynylcyclohexadienediol (III) which rearranges upon treatment with ZnCl2 to give the bicyclooctadienone (IVa).
ChemInform Abstract: Studies of Reduction with the Sodium Borohydride‐Transition Metal Boride System. Part 1. Reduction of Nitro and the Other Functional Groups with the Sodium Borohydride‐Nickel Boride System.
Authors: NOSE A. , KUDO T.
Published: May 2016

Reduction of the nitrobenzenes (I) with nickel boride and sodium borohydride yields mixtures of the azoxybenzenes (II) and the anilines (III).
ChemInform Abstract: Conjugate Addition of Allyltrimethylsilane to Electrophilic Cyclopropanes.
Authors: BAMBAL R. , KEMMITT R. D. W.
Published: May 2016

Reaction of the electron‐deficient cyclopropanes (II) with allyltrimethylsilane (I) in the presence of ethylaluminum dichloride results in coupling and ring cleavage, producing the unsaturated diesters (III).
ChemInform Abstract: Generation and Reactions of 2‐Alkyl‐3‐carboethoxycyclopentadienones.
Authors: LANGE J. H. M. , KLUNDER A. J. H. , ZWANENBURG B.
Published: May 2016

The thermolysis of the carboxylic acid (Ia) yields the decarboxylation product (II), whereas the methyl homologue (Ib) gives the rearranged acids (III) and (IV).
ChemInform Abstract: Strongly Bent Naphthalene Units in (2)(2,6)Naphthalino(2)paracyclophane (VI) and (2)(2,6)Naphthalino(2)paracyclophane‐1,11‐diene (IV).
Authors: BLANK N. E. , HAENEL M. W. , KRUEGER C. + , TSAY Y.‐H. , WIENTGES H.
Published: May 2016

Fused‐ring arenes such as naphthalene can be subjected to considerable deformation as is exemplified by the structures of title compounds (VI) (already known, space group P212121 with Z=4) and (IV) (space group P21/c with Z = 8).
ChemInform Abstract: Synthesis of Tribenzotricyclo(5.3.0.04,8)deca‐2,5,7,9‐tetraene: A New Strained Olefin with High Unsaturation.
Authors: OKADA K. , KAWAI H. , OKUBO K. , UESUGI T. , ODA M.
Published: May 2016

The polycyclic ring system (I) is converted to the bromide (III) via (II) as outlined in the reaction scheme.
ChemInform Abstract: Synthesis of 3,4;7,8;9,10‐Tribenzobicyclo(4.2.2)deca‐1,3,7,9‐tetraene: A New Strained Bridgehead Olefin.
Authors: TODA M. , OKADA K. , ODA M.
Published: May 2016

Benzocyclobutene (II) reacts with the anthracenes (I) to give the cycloaddition products (IIIa) ‐ (IIIc).
ChemInform Abstract: New Methods and Reagents in Organic Synthesis. Part 75. Asymmetric Synthesis of α‐Hydroxy Ketones Using Chiral Phase Transfer Catalysts.
Authors: MASUI M. , ANDO A. , SHIOIRI T.
Published: May 2016

Tetralones such as (I) and indanones such as (III) are oxygenated in the presence of aqueous sodium hydroxide, triethyl phosphite, and a chiral ammonium salt, derived from cinchona alkaloids, to produce the corresponding optically active α‐hydroxy ketones such as (II) and (IV).
ChemInform Abstract: Condensed Heteroaromatic Ring Systems. Part 13. One‐Step Synthesis of 2‐Substituted 1‐Methylsulfonylindoles from N‐(2‐Halophenyl)methanesulfonamides.
Authors: SAKAMOTO T. , KONDO Y. , IWASHITA S. , NAGANO T. , YAMANAKA H.
Published: May 2016

Pd‐catalyzed cyclocondensation reaction of the halophenylmethanesulfonamides (III) with the alkynes (IV) yields the 1‐methylsulfonylindoles (V).
ChemInform Abstract: Antimicrobic Activity of 4‐(p‐Dimethylaminostyryl)quinolinium Salts.
Authors: GUTSULYAK B. M. , DZYUBAK S. T. , PETROVSKII R. S. , KYNINA E. S. , MYKYTYN S. I.
Published: May 2016

Condensation reaction of the lepidinium salts (I) with the carbonyl compounds (II) gives the styrylquinolines (III).
ChemInform Abstract: Pyrimidine Derivatives Containing a 3,4,5‐Trimethoxyphenyl Group.
Authors: KARP V. K. , PORTNYAGINA V. A. , KLYUSHIN V. V. , TUROV A. V. , KOVTUNENKO V. A.
Published: May 2016

The benzoylacetate (I) reacts with thiourea (IIa) or guanidine (IIb) to yield the (trimethoxyphenyl)pyrimidines (III).
ChemInform Abstract: Molecular Yardsticks. Synthesis of Extended Equilibrium Transfer Alkylating Cross‐Link Reagents and Their Use in the Formation of Macrocycles.
Authors: BROCCHINI S. J. , EBERLE M. , LAWTON R. G.
Published: May 2016

Compounds (III) and (V) (prepared via the chelated Ti complex of (I)) both contain an α‐methylene with a good leaving group (‐SO2‐CH2‐CH2‐OH) close to the double bond combined with a strong activating oxo group for a Michael reaction.
ChemInform Abstract: Carbon Network Building Blocks: Triethynylmethanol and Derivatives.
Authors: ALBERTS A. H. , WYNBERG H.
Published: May 2016

Oxidation of the bis(silylethynyl) carbinol (I) yields the ketone (II), which is coupled with the acetylide (III), forming the tris(silylethynyl) carbinol (IV).
ChemInform Abstract: Monochlorogallane: Synthesis, Properties, and Structure of the Dimer H2Ga(μ‐Cl)2GaH2 in the Gas Phase as Determined by Electron Diffraction.
Authors: GOODE M. J. , DOWNS A. J. , PULHAM C. R. , RANKIN D. W. H. , ROBERTSON H. E.
Published: May 2016

Treatment of gallium trichloride (I) with trimethylsilane yields dimeric monochlorogallane (II) which reacts with trimethylamine (III) at lower temperatures to give the 1:2 adduct (IV).
ChemInform Abstract: Preparation and Reactions of Tantalum Alkylidene Complexes Containing Bulky Phenoxide or Thiolate Ligands. Controlling Ring‐Opening Metathesis Polymerization Activity and Mechanism Through Choice of Anionic Ligand.
Authors: WALLACE K. C. , LIU A. H. , DEWAN J. C. , SCHROCK R. R.
Published: May 2016

The alkylidene‐Ta complexes (III) are prepared according to the scheme.
ChemInform Abstract: Nickel and Cyclopropane Reactions and Photochemistry Using Matrix‐Isolation FTIR Spectroscopy. Nickelacyclobutane Synthesis and Photofragmentation.
Authors: KLINE E. S. , HAUGE R. H. , KAFAFI Z. H. , MARGRAVE J. L.
Published: May 2016

The cocondensation of Ni atoms and cyclopropane in an argon matrix at 12 K produces the unligated nickelacyclobutane (III).
ChemInform Abstract: Synthesis and Properties of the Ru(tacn)3+/2+ 2 Couple and NMR Study of the Electron Self‐Exchange (tacn: 1,4,7‐Triazacyclononane).
Authors: BERNHARD P. , SARGESON A. M.
Published: May 2016

The tridentate title ligand reacts with the labile complex (I) to yield the Ru(II) compound (IIIa), which on controlled‐potential coulometry gives the Ru(III) derivative (IIIb).
ChemInform Abstract: Synthetic Studies on Arene‐Olefin Cycloadditions. Part 10. A Concise, Stereocontrolled Total Synthesis of (.+‐.)‐Laurenene.
Authors: WENDER P. A. , VON GELDERN T. W. , LEVINE B. H.
Published: May 2016

Diels‐Alder of the diene (II) with toluyne affords the adduct (III) which alternatively can be prepared starting from benzoquinone and (II) via a six‐step procedure (37% overall yield).
ChemInform Abstract: Stereospecificity in Diels‐Alder Reactions of Dienes and Dienophiles Derived from Methyl 4,6‐O‐Benzylidene‐α‐D‐glucopyranoside.
Authors: LOPEZ J. C. , LAMEIGNERE E. , LUKACS G.
Published: May 2016

The pyranosedienes (I) and (VI) undergo stereospecific cycloaddition reaction with maleic anhydride (II) or dimethyl acetylenedicarboxylate (IV) to give the derivatives (III), (V), (VII), or (VIII).
ChemInform Abstract: A New Approach to Hemiterpenoid Tricyclic Quinolones. Synthesis of N‐Methylflindersine, Khaplopholine and Other Structurally Similar Alkaloids.
Authors: BRAVO P. , RESNATI G. , VIANI F. , CAVICCHIO G.
Published: May 2016

The alkaloids N‐methylflindersine and zanthobungeanine (IIIa) and (IIIb), resp., and the derivative (IIIc) are synthesized via a mercury(II)‐promoted cyclization of the quinolones (I).
ChemInform Abstract: Photocycloaddition of Cytosine to 5‐Methoxyuracil in Dinucleotide Model Compound (IX).
Authors: SKALSKI B. , WENSKA G. , PASZYC S. , STEFANIAK Z.
Published: May 2016

From derivative (VII) (prepared as given in the scheme) the model compound (IX) or its deamination product (XII) are obtained.
ChemInform Abstract: Total Synthesis of Amphoteronolide B and Amphotericin B. Part 1. Strategy and Stereocontrolled Construction of Key Building Blocks.
Authors: NICOLAOU K. C. , DAINES R. A. , UENISHI J. , LI W. S. , PAPAHATJIS D. P. , CHAKRABORTY T. K.
Published: May 2016

The epoxide (II), readily available from (+)‐DET, serves as starting material for the synthesis of the building blocks (IV) and (VIII).
ChemInform Abstract: Enantioselective Total Synthesis of (+)‐12,13‐Epoxytrichothec‐9‐ene and Its Antipode.
Authors: HUA D. H. , VENKATARAMAN S. , CHAN R. Y. K. , PAUKSTELIS J. V.
Published: May 2016

A series of 1,4‐addition reactions of racemic cyclic allylic sulfoxides and cyclopentenones is studied and it can be shown that methyl substitution at C‐3 of 2‐cyclopentenones hinders these additions.
ChemInform Abstract: 7‐Aminocephalosporanic Acid Derivatives and Their Antibacterial Properties.
Authors: MNDZHOYAN SH. L. , KRAMER M. S. , ALEKSANYAN M. V. , TER‐ZAKHARYAN YU. Z. , OGANYAN SH. G. , AGABABYAN R. V.
Published: May 2016

7‐Acylaminocephalosporanic acids such as (III) or (VI), prepared from 7‐aminocephalosporanic acid (I) by common methods, are more active against gram‐positive and gram‐negative bacteria than the corresponding desacetoxycephalosporins.
ChemInform Abstract: Multiple Pulse NMR
Authors: TURNER D. L.
Published: May 2016

Review: (419 refs.
ChemInform Abstract: Electron Spin Echo Modulation and Electron Spin Resonance Studies of Cupric Ions in H‐ZSM‐5, Na‐ZSM‐5, K‐ZSM‐5, and Ca‐ZSM‐5 Zeolites: Analysis of 13C Electron Spin Echo Modulation
Authors: SASS C. E. , KEVAN L.
Published: May 2016

(ESEM).
ChemInform Abstract: Electrolyte Electroreflectance and Photoelectrochemical Topological Investigation of Polycrystalline CuInSe2 Electrodes by Scanning Light‐Spot Optical Microscopy.
Authors: RAZZINI G. , PERALDO BICELLI L. , SCROSATI B. , SALVADOR P. , PUJADAS M. , DECKER F.
Published: May 2016

The experimental setup that allows to observe in situ the overall semiconductor surface and to perform electroreflectance (EER) and photoelectrochemical measurements is described.
ChemInform Abstract: Electrooptical Investigation of the Potential Drop at III/V Semiconductor/Electrolyte Interfaces.
Authors: LEMASSON P. , NGUYEN VAN HUONG C.
Published: May 2016

The semiconductor/electrolyte junctions are studied for n‐type InP, GaAs, and Ga0.47In0.53As in aqueous (HClO4, NaClO4, KOH) and nonaqueous (NaClO4 propylene carbonate) electrolytes using electrolyte electroreflectance as an in situ technique to determine the distribution of potential and energy states at the interface.
ChemInform Abstract: Novel Oxidic Derivatives of Rhenium(VI) ‐ SrReO4 and BaReO4.
Authors: SHAPLYGIN I. S. , VARLAMOV N. V.
Published: May 2016

The hitherto unknown title compounds are prepared by solid‐phase reactions between M2CO3 (M: Sr, Ba) and ReO3 under high pressure (65 kbar) at 1200 °C. An X‐ray analysis reveals that SrReO4 has scheelite structure and that BaReO4 has a rhombically distorted scheelite structure.
ChemInform Abstract: Iron‐Promoted Coupling Reaction of Homohypostrophene.
Authors: CHOW T. J. , DING M.‐F.
Published: May 2016

Thermolysis of homohypostrophene (I) in the presence of iron pentacarbonyl (II) yields a mixture of the four diastereomeric ketones (III) ‐(VI) which is only separated into two pairs of isomers.
ChemInform Abstract: Palladium‐Catalyzed Regio‐ and Stereoselective Aryldesilylation of α‐Silylstyrenes with Arenediazonium Salts.
Authors: IKENAGA K. , MATSUMOTO S. , KIKUKAWA K. , MATSUDA T.
Published: May 2016

α‐(Trimethylsilyl)styrene (I) reacts with the aryldiazonium salts (II) in the presence of a Pd(0) catalyst to give the stilbenes (III) with predominance of the E‐isomers.
ChemInform Abstract: Catalytic Acetonylation of Cyclic 1,3‐Dicarbonyl Systems by 2‐(Chloromethyl)‐3,5‐dioxa‐1‐hexene.
Authors: GU X.‐P. , OKUHARA T. , IKEDA I. , OKAHARA M.
Published: May 2016

Acetonylation of the 1,3‐dicarbonyl compounds (I) with the title reagent (II) is achieved in the presence of DBU and a palladium(II) catalyst system.
ChemInform Abstract: An Intramolecular Photocyclization to Form the Azepino(3,4,5‐cd)indole System.
Authors: KLOHR S. E. , CASSADY J. M.
Published: May 2016

The 5‐substituted indoles (I) are subjected to Vilsmeier formylation, yielding the aldehydes (III) which are converted to the nitriles (V) using the procedure of Karmarkar.
ChemInform Abstract: Functionalized Phosphine Imides. Diastereoselective Synthesis of β‐Hydroxyphosphorylated Derivatives.
Authors: BARLUENGA J. , LOPEZ F. , PALACIOS F.
Published: May 2016

The phosphine imides (I) are converted to the 2‐hydroxyalkylphosphine oxides (IV) by metalation and coupling with the aldehydes (II), followed by hydrolysis.