bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Uncatalyzed Addition Reaction of Unactivated Carbonyl Compounds to α‐Oximinophenylacetonitrile Oxide.
Authors: ANDRIANOV V. G. , EREMEEV A. V.
Published: May 2016

α‐Oximinophenylacetonitrile oxide, prepared in situ from α‐oximinophenylacetohydroximoyl chloride (I), is coupled with the carbonyl compounds (II) to give the dioxazoles (III).
ChemInform Abstract: The Photochemical (2 + 2)Cycloaddition to N‐Methoxycarbonyl‐5,6‐dihydro‐4‐pyridone.
Authors: GUERRY P. , NEIER R.
Published: May 2016

Irradiation of the N‐methoxycarbonyldihydropyridone (I) in the presence of the alkenes (II), followed by treatment with alumina in ether, results in the formation of the azabicyclo(4.2.0)octanones (III).
ChemInform Abstract: Synthesis and Pharmacological Activity of 1‐Imino‐1,2,3,4‐tetrahydropyrazino(1,2‐a)indole Derivatives.
Authors: ZAITSEV S. A. , GLUSHKOV R. G. , MASHKOVSKII M. D. , ANDREEVA N. I.
Published: May 2016

The indolecarboxylate (I) reacts with the chloroethylamine (II) to give the N‐substituted indol (III) which is transformed into the fused indoles (IV), (VI), (VIII), and (X).
ChemInform Abstract: Conformation and Electronic Preferences in Rhodium(II) Carboxylate and Rhodium(II) Carboxamide‐Catalyzed Carbon‐Hydrogen Insertion Reactions of N,N‐Disubstituted Diazoacetoacetamides.
Authors: DOYLE M. P. , TAUNTON J. , PHO H. Q.
Published: May 2016

The N‐(3‐ethoxycarbonylethyl) α‐azo β‐keto amides (I), (III), and (VII) are denitrogenated in the presence of rhodium catalysts to undergo cyclization, producing the β‐lactams (II), (IV), or (VIII), the pyrrolidinones (V) or (IX), and the oxazepinones (VI) or (X).
ChemInform Abstract: Oxidative Addition of Thiols to a Binuclear Platinum Complex; the Crystal Structure of (Pt2(μ‐S)(SCH2Ph)2(μ‐Ph2PCH2PPh2)2).
Authors: HADJ‐BAGHERI N. , PUDDEPHATT R. J. , MANOJLOVIC‐MUIR L. , STEFANOVIC A.
Published: May 2016

Reactions of the binuclear Pt(0) complex (I) with H2S (II), aliphatic and aromatic thiols are studied.
ChemInform Abstract: New (Pt3(μ3‐CO)(μ‐Ph2PCH2PPh2)3L)2+ Clusters, L: Phosphine or Phosphite Ligand, Containing an Asymmetric Pt3(μ3‐CO) Group and the Crystal Structure of the Complex with L: P(OPh)3.
Authors: BRADFORD A. M. , DOUGLAS G. , MANOJLOVIC‐MUIR L. , MUIR K. W. , PUDDEPHATT R. J.
Published: May 2016

Complexes (IIIa)‐(IIIc) are thermally stable, but (IIId) readily dissociate to regenerate (I).
ChemInform Abstract: Hypervalent Organoiodine Reagents in the β‐Fragmentation of Unsaturated Lactols Leading to Spiro Compounds.
Authors: HERNANDEZ R. , MARRERO J. J. , SUAREZ E.
Published: May 2016

The unsaturated steroid lactol (I), prepared from glyoxylic acid and 5α‐cholestan‐3‐one, reacts with diacetoxyiodobenzene in the presence of iodine, forming the spirocyclic anhydrides (II).
ChemInform Abstract: Solid‐Phase Synthesis of Glycopeptide Amides Under Mild Conditions: Morphiceptin Analogues.
Authors: BARDAJI E. , TORRES J. L. , CLAPES P. , ALBERICIO F. , BARANY G. , VALENCIA G.
Published: May 2016

Using the protected valeric acid derivative (I) as anchor group at an aminomethyl polystyrole resin, the synthesis of the title compounds (II) is achieved.
ChemInform Abstract: 3H‐1,2‐Benzodithiole‐3‐one 1,1‐Dioxide as an Improved Sulfurizing Reagent in the Solid‐Phase Synthesis of Oligodeoxyribonucleoside Phosphorothioates.
Authors: IYER R. P. , EGAN W. , REGAN J. B. , BEAUCAGE S. L.
Published: May 2016

Phosphorothioate oligodeoxyribonucleotides are known to be resistant to degradation by nucleases, and, hence, have demonstrated their usefulness as "antisense" molecules by inhibiting gene expression in vitro.
ChemInform Abstract: An Efficient Regioselective Synthesis of Substituted Purine Analogues of Guanosine and Inosine.
Authors: RAJU N. , ROBINS R. K. , VAGHEFI M. M.
Published: May 2016

The N‐trimethylsilylpurine (IX), prepared from 2‐bromo‐6‐oxopurine (I), is coupled with the ribose derivatives (X) to yield the N9‐substituted purines (XI) as the main products.
ChemInform Abstract: Oligomeric Flavanoids. Part 7. Novel Base‐Catalyzed Pyran Rearrangements of Procyanidins.
Authors: STEYNBERG J. P. , BEZUIDENHOUDT B. C. B. , BURGER J. F. W. , YOUNG D. A. , FERREIRA D.
Published: May 2016

Procyanidin B‐3 (I) is subjected to readily occurring C‐ring isomerizations in alkaline buffer solution to form the novel tetrahydropyranochromene (II) and a series of flavanylbenzopyrans (III) and (IV), in which the C‐2 pyrocatechol and C‐4 (+)‐catechin moieties are interchanged relative to their positions in the biflavanoid (I) (most yields in g; isolation of the compounds as their methyl or acetyl derivatives).
ChemInform Abstract: Structure of Peperomin B.
Authors: LEE T.‐J. , LEE T.‐Y. , CHEN C.‐M.
Published: May 2016

The X‐ray structure of the title compound (I) (space group P21, Z=2) is reported, a lignan separated from Peperomia japonica.
ChemInform Abstract: β‐Fluorosubstituted Amino Acids
Authors: KUKHAR' V. P. , YAGUPOL'SKII YU. L. , SOLOSHONOK V. A.
Published: May 2016

Review: (114 refs.
ChemInform Abstract: Photochemistry of Azines
Authors: MALKIN YA. N. , KUZ'MIN V. A.
Published: May 2016

Review: (106 refs.
ChemInform Abstract: Reducibility of Metal Oxides in Hydrogen and Strength of Oxygen Bond in Their Surface Layer.
Authors: KLISSURSKI D. , DIMITROVA R.
Published: May 2016

Based on literature data and examples it is shown that the bond strengths of surface oxygen in metal oxides and complex oxide systems can successfully be used to predict their reducibility.
ChemInform Abstract: Novel Compounds with Melilite Structure: M2SiBe2O7 (M: Nd‐Eu, Tb, Ho‐Lu) and M2GeBe2O7 (M: Nd, Eu, Tb, Ho, Tm‐Lu).
Authors: MILL' B. V. , BAIBAKOVA G. D.
Published: May 2016

The title compounds are prepared from mixtures of the oxides by solid‐phase reactions, which are conducted at 1200‐1400 °C under air.
ChemInform Abstract: A Novel Sodium Vanadatovanadite.
Authors: KRUCHININA M. V. , IVAKIN A. A. , KRASIL'NIKOV V. N.
Published: May 2016

The title compound (IV) is prepared in aqueous solution and characterized by IR and XRD.
ChemInform Abstract: Manganese(III) Diphosphates.
Authors: LYUTSKO V. A. , SELEVICH A. F. , KUTSEVA E. R.
Published: May 2016

In the presence of oxidants the reaction between manganese(II) salts and phosphorous acid conducted at 483‐413 K affords a novel modification of a manganese(III) hydrogendiphosphate viz.
ChemInform Abstract: Stereochemical Control in Microbial Reduction. Part 12. (S)‐4‐Nitro‐2‐butanol as a Source to Synthesize Natural Products.
Authors: NAKAMURA K. , KITAYAMA T. , INOUE Y. , OHNO A.
Published: May 2016

The title compound (II) undergoes Michael additions and condensations.
ChemInform Abstract: Reaction of Vinylacetylene with Ketoximes Under the Conditions of the Trofimov‐Reaction.
Authors: SOBENINA L. N. , MIKHALEVA A. I. , KOROSTOVA S. E. , SIGALOV M. V.
Published: May 2016

The reaction specified in the title unexpectedly affords mixtures of the 3‐butynyl (III), the 2,3‐butadienyl (IV) and the 2‐butynyl derivatives (V) instead of the expected vinylpyrroles.
ChemInform Abstract: Asymmetric Diels‐Alder Reactions of 1,3‐Disiloxycyclohexadiene with Chiral Acrylamides.
Authors: LAMY‐SCHELKENS H. , GHOSEZ L.
Published: May 2016

The 1,3‐disiloxycyclohexadiene (I) undergoes Lewis acid‐catalyzed Diels‐Alder reaction with the acrylamides (II) to form either predominantly the endo‐adducts (III) or solely the exo‐adducts (IV) depending on the catalyst employed.
ChemInform Abstract: Mechanism of the Gas‐Phase Isomerization of Dihalobenzenes over Zeolite β.
Authors: PARDILLOS J. , BRUNEL D. , COQ B. , MASSIANI P. , DE MENORVAL L. C. , FIGUERAS F.
Published: May 2016

The title reaction of (I) proceeds in the adsorbed phase through a protonated intermediate and is affected by the acidity of the zeolite by variation of the Al content.
ChemInform Abstract: A Distereoselective Route to Substituted β‐Amino Acids Using Enolate Claisen Rearrangements.
Authors: DELL C. P. , KHAN K. M. , KNIGHT D. W.
Published: May 2016

Treatment of the protected aminocarboxlic acid alkenyl esters (I), (V), (VIII), and (IX) with trimethylsilyl chloride (II), followed by hydrolysis of the silyl esters and esterification with diazomethane (III) results in rearrangement, yielding the unsaturated esters (IV), (VI) and (VII), or (X).
ChemInform Abstract: Intramolecular Photocycloaddition and Retro‐Mannich Fragmentation of Acyclic Tertiary Vinylogous Amides.
Authors: WINKLER J. D. , HADDAD N. , OGILVIE R. J.
Published: May 2016

The tertiary vinylogous amides (III), prepared from the homoallylic amines (I) and the vinylogous acid chloride (II), are submitted to photolysis.
ChemInform Abstract: Modification of Photochemical Reactivity by Zeolites: Cation Enhanced α‐Cleavage of Aryl Alkyl Ketones Included in Faujasites.
Authors: RAMAMURTHY V. , CORBIN D. R. , TURRO N. J. , SATO Y.
Published: May 2016

The irradiation of the phenyl ketones (I) is performed in benzene or in various zeolites doted with alkali or alkaline earth metal ions.
ChemInform Abstract: On Catalyzed and Uncatalyzed Hydroborations of Chiral Allylic Alcohols and Amines.
Authors: BURGESS K. , OHLMEYER M. J.
Published: May 2016

The allylic acetates (I) and (IV) are hydroxylated via reaction with catecholborane in the presence of a rhodium catalyst, followed by oxidative work‐up, to give mainly the anti‐isomers (III) or (VI) of 1,3‐diols.
ChemInform Abstract: Metal‐Promoted Cyclization. Part 31. Stereoselective Synthesis of Exocyclic Alkenes via Zirconium‐Promoted Alkyl‐Diene Coupling.
Authors: NEGISHI E. , MILLER S. R.
Published: May 2016

The dienes (I) react with the dialkylzirconium complexes (II) to give stereoselectively the exocyclic alkenes (III) after protonation.
ChemInform Abstract: Retention of Configuration in Ligand Coupling Reactions in σ‐Sulfuranes.
Authors: OAE S. , TAKEDA T. , WAKABAYASHI S. , IWASAKI F. , YAMAZAKI N. , KATSUBE Y.
Published: May 2016

The ligand coupling reaction of the optically active sulfoxide (I) (space group P212121; Z=4) leads to the coupling product (II) (space group P21; Z=2) with complete retention of configuration at the β‐phenylethyl group.
ChemInform Abstract: A New Knowledge About the Synthesis of 1‐Phenyl‐3‐(2‐cyanophenyl)thiourea.
Authors: PAZDERA P. , NOVACEK E. , ONDRACEK D.
Published: May 2016

Reaction of 2‐aminobenzonitrile (I) with phenyl isothiocyanate (IIa) does not lead to the formation of 1‐phenyl‐3‐(2‐cyanophenyl)thiourea (VII) as described in the literature, but gives 3‐phenyl‐4‐imino‐1,2,3,4‐tetrahydroquinazoline‐2‐thione (IIIa).
ChemInform Abstract: Thermally Induced Reorganization of (23)(1,3,5)Cyclophane.
Authors: MEHTA G. , SHAH S. R.
Published: May 2016

On flash vacuum pyrolysis, the novel and difficultly accessible title compound (I) undergoes homolytic scission of one of the ethano bridges to give the products (II)‐(IV).
ChemInform Abstract: Effect of Substituents on Radical‐Induced Cyclization of Bromoacetals of 3‐Hydroxyhexa‐1,5‐dienes.
Authors: YADAV J. S. , GADGIL V. R.
Published: May 2016

The bromoacetaldehyde 1,5‐alkadienyl acetals (I) and (III) are cyclized upon reduction to give the allylbutyrolactones (II) or the bicyclic lactones (IV), depending on the substitution pattern.
ChemInform Abstract: Reaction of 3,4‐Dihydro‐2H‐thiopyran with Phenylhydrazines. Synthesis of Homothiotryptophols.
Authors: TOKMAKOV G. P. , GRANDBERG I. I.
Published: May 2016

The arylhydrazines (I) react with the dihydrothiopyran (II) in wet dioxane to give the tetrahydrothiopyranylthiopropylindoles (III).
ChemInform Abstract: A Novel Synthesis of a Few Substituted s‐Triazolo(3,4‐b)(1,3,4)thiadiazoles and Evaluation of Their Antibacterial Activity.
Authors: PATEL H. V. , FERNANDES P. S. , VYAS K. A.
Published: May 2016

A large variety of title compounds are prepared and tested for their antibacterial activity.
ChemInform Abstract: Reactions of 1‐(α‐Alkoxyalkyl)‐ and 1‐(α‐(Aryloxy)alkyl)benzotriazoles with Grignard Reagents. A New and Versatile Method for the Preparation of Ethers.
Authors: KATRITZKY A. R. , RACHWAL S. , RACHWAL B.
Published: May 2016

The benzotriazoles (V) and (XI) mentioned in the title are prepared as outlined in the reaction scheme.
ChemInform Abstract: Approaches to the Synthesis of Benzo(c)phenanthridines.
Authors: BLASKO G. , CORDELL G. A.
Published: May 2016

The published reaction sequence to produce (II) is repeated (only given in a scheme without any details).
ChemInform Abstract: The Reaction of Thiols and α,ω‐Dithiols with Triphenylphosphine and Diisopropyl Azodicarboxylate.
Authors: CAMP D. , JENKINS I. D.
Published: May 2016

α,ω‐Dithiols are converted into cyclic disulfides under mild conditions using Mitsunobu reagents.
ChemInform Abstract: Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating a Helicene Moiety as the Chiral Centre.
Authors: YAMAMOTO K. , IKEDA T. , KITSUKI T. , OKAMOTO Y. , CHIKAMATSU H. , NAKAZAKI M.
Published: May 2016

The synthesis of the racemic pentahelicene crown ether (VII) as well as two of its hexahelicene analogues is described.
ChemInform Abstract: Triangular Thiocomplexes of Molybdenum: Reactions with Halogens, Hydrohalogen Acids and Phosphines.
Authors: FEDIN V. P. , SOKOLOV M. N. , MIRONOV YU. V. , KOLESOV B. A. , TKACHEV S. V. , FEDOROV V. E.
Published: May 2016

The NH4 salt of (I) reacts with Cl2 or Br2 (but not I2) to give (IIIa) or (IIIb) isolated as the NH4 or NEt4 salt, respectively.
ChemInform Abstract: Multiple Bonds Between Transition Metals and Main Group Elements. Part 72. Organorhenium Imido Complexes: Syntheses, Structure, and Reactivity.
Authors: HERRMANN W. A. , WEICHSELBAUMER G. , PACIELLO R. A. , FISCHER R. A. , HERDTWECK E. , OKUDA J. , MARZ D. W.
Published: May 2016

Imido‐Re complexes of the type (III), (VI), and (IX) are synthesized by the three different methods shown.
ChemInform Abstract: Carbonyl Ligands from Alkynes: Oxidative Decarbonation of Acetylide Bridged Complexes.
Authors: BERNHARDT W. , VAHRENKAMP H.
Published: May 2016

The acetylide‐bridged trinuclear RuCo2 complexes (IIIa) and (IIIb) are synthesized according to the scheme.
ChemInform Abstract: Bis(2‐pyridyl)silane Ligands. Part 2. Structural Characterization and Catalytic Applications of Palladium Complexes in Organostannane Cross‐Coupling Reactions.
Authors: WRIGHT M. E. , LOWE‐MA C. K.
Published: May 2016

The Pd complex (III) having boat conformation is obtained as a mixture of its equatorial (IIIa) (space group P21/n, Z=4) and axial isomer (IIIb).
ChemInform Abstract: Synthesis of Tetraphenylporphins with Active Groups in the Phenyl Rings. Part 5. Tetra(carboxymethyloxyphenyl)porphins and Their Ethyl Esters.
Authors: SYRBU S. A. , SEMEIKIN A. S. , BEREZIN B. D. , KOIFMAN O. I.
Published: May 2016

The hydroxyphenylporphin (I) reacts with the chloroacetate (II) to give the ethoxycarbonylmethyloxy derivative (III) which is also obtained from the benzaldehyde (IV) and pyrrole (V).
ChemInform Abstract: Neighbouring Group Participation in the Cleavage of Some Steroidal Hydroxy Epoxides.
Authors: MORRISON G. A. , WILKINSON J. B.
Published: May 2016

Cleavage of the steroidal epoxide (I) and of its 3‐β‐methoxy analogue (III) by perchloric, acetic and formic acid and by BF3·Et2O is described.
ChemInform Abstract: A Practical, Efficient Large‐Scale Synthesis of 1,6‐Anhydrohexopyranoses.
Authors: ZOTTOLA M. A. , ALONSO R. , VITE G. D. , FRASER‐REID B.
Published: May 2016

The hexopyranoses (I) are treated with the tosyl chloride (II) to give the crude 1,6‐anhydrohexopyranoses (IV) via the tosylate (III).
ChemInform Abstract: Carbene Ligands as Anthracyclinone Synthons. Part 7. Quinone Ketal Functionalized Carbonyl Carbene Complexes: Synthesis, Structure and Carbene Annulation.
Authors: DOETZ K. H. + , POPALL M. , MUELLER G. + , ACKERMANN K.
Published: May 2016

The alkylation of pentacarbonyl quinone bisketal metallates, e.g. (IV), yields the title carbene complexes such as (VII) (no yield given) and (IX).
ChemInform Abstract: Synthesis of Mono‐ and Sesquiterpenoids. Part 19. Synthesis of the Enantiomers of Ancistrofuran, a Defensive Compound from Ancistrotermes cavithorax.
Authors: MORI K. , SUZUKI N.
Published: May 2016

The (+)‐enantiomer of (XV) is prepared from the key intermediate (IX) in 5.1% overall yield.
ChemInform Abstract: Cathodic Discharge of Lithium Borofluoride Promoted by Quinoline as a Primary Lithium Cell.
Authors: DOHZONO M. , YAMADA T. , AIKAWA Y. , SHIMIZU Y. , EGASHIRA M.
Published: May 2016

It is demonstrated that the addition of quinoline to the electrolyte solution in the Li/LiBF4/carbon system markedly improves the cell performance.
ChemInform Abstract: Hydrogen Evolution on SrxNbO3‐δ (0.7 ≤ x ≤ 0.95) in Acid.
Authors: MANOHARAN R. , GOODENOUGH J. B.
Published: May 2016

It is found that SrxNbO3‐δ evolves gaseous H2 from 2.5 M H2SO4 with an exchange current density of 4.37·10‐5 A cm‐2 at 60 °C. No chemical attack is observed on the time scale of normal laboratory experiments.
ChemInform Abstract: The Anodic Behavior of Ion Beam Mixed Surface Alloys,
Authors: MCCAFFERTY E. , NATISHAN P. M. , HUBLER G. K.
Published: May 2016

Pd into Ti, Ti into Fe, and Mo into Al, is investigated.
ChemInform Abstract: Oxidation of Single‐Crystal Silicon Carbide. Part 1. Experimental Studies.
Authors: ZHENG Z. , TRESSLER R. E. , SPEAR K. E.
Published: May 2016

The oxidation of SiC single crystals in dry oxygen is studied as a function of O2 partial pressure (10‐3‐1 atm) and temp. (1200‐1500 °C) and found to follow parabolic kinetics.
ChemInform Abstract: Unusual Affinities of Monovalent Anions to Dicopper(II) Complexes with N,N′,N′′,N′′′‐Tetrakis(2‐aminoethyl)‐tetraazacycloalkanes.
Authors: ASATO E. , OZUTSUMI K. , ISHIGURO S. , KIDA S. , MURASE I.
Published: May 2016

The equilibrium constants for the reactions of the complexes (I) with the anions X‐ giving (II) are determined spectrophotometrically in aqueous solution at 25 °C. The formation constants of (II) are unusually large compared to those of common copper complexes with Cu‐X bonds.
ChemInform Abstract: Asymmetric Diels‐Alder Reaction with Use of (S)‐5‐(Trityloxymethyl)pyrrolidin‐2‐one as a Chiral Auxiliary.
Authors: TOMIOKA K. , HAMADA N. , SUENAGA T. , KOGA K.
Published: May 2016

The reaction of the pyrrolidones (I) proceeds with high stereoselectivity.
ChemInform Abstract: Selective Oxidative Cleavage of Benzylic Carbon‐Nitrogen Double Bonds Under Non‐Aqueous Condition with Tetrakis(pyridine)silver Dichromate ((Py)2Ag)2Cr2O7.
Authors: FIROUZABADI H. , SEDDIGHI M. , AHMADI Z. A. , SARDARIAN A. R.
Published: May 2016

Various hydrazones and semicarbazones, e.g. (I), or oximes such as (IV) are treated with tetrakispyridinesilver dichromate in benzene to undergo cleavage, yielding the corresponding carbonyl compounds, e.g. (III) or (V).
ChemInform Abstract: Ring Closure Reactions of Methyl N‐(Haloacetyl)anthranilates with Ammonia.
Authors: CHO N. S. , SONG K. Y. , PARKANYI C.
Published: May 2016

Because of pharmacological interest, title reactions are studied using the bromoacetyl derivative (I) which in the absence of Et3N yields only low amounts of (III) but 62% (IV).
ChemInform Abstract: Mechanistic Investigation on the Remote Pummerer Reaction of 1,5‐Dithiacyclooctane 1‐Oxide with Acetic Anhydride via Intermediate Formation of Disulfide Dication.
Authors: FUJIHARA H. , KAWADA A. , FURUKAWA N.
Published: May 2016

The Pummerer reaction of (I) leading to the acetates (V) and (VI) is shown to proceed via a rapid oxygen scrambling in (I) and the tight ion pair (IV).
ChemInform Abstract: A New Synthetic Route to Optically Active α,β‐ and β′,γ′‐Unsaturated Alcohols, and Its Application to the Synthesis of a Fungitoxic C‐18 Hydroxy Unsaturated Fatty Acid.
Authors: KASHIHARA H. , SUEMUNE H. , FUJIMOTO K. , SAKAI K.
Published: May 2016

The chiral phosphonates (III), prepared by the reaction of the ester (I) with the phosphonate (II), are coupled with the aldehydes (IV) to yield the unsaturated ketones (V).
ChemInform Abstract: Synthesis of Angularly Annulated Tetraquinanes by Photo‐Thermo Metathesis of Diastereomerically Pure Adducts Between Benzoquinone and Tetrahydropentalenes.
Authors: GRIESBECK A. G.
Published: May 2016

The central step of the reaction sequence leading to the angularly fused tetraquinanes (VIII) is the photo‐thermo metathesis of the adducts (VIa+b) from tetrahydropentalenes (II)/(III) and benzoquinone (V).
ChemInform Abstract: Unusual, Linear Regioselective Hydroformylation on PtL2Cl2‐Iron or PtL2Cl2‐Tin Catalysts.
Authors: MUTEZ S. , PAUMARD E. , MORTREUX A. , PETIT F.
Published: May 2016

Hydroformylation of styrene (I) in the presence of low‐valent Pt catalysts produces mainly the linear aldehydes (III), together with the branched aldehydes (IV) and low amounts of phenylethane (V).
ChemInform Abstract: 7‐Chloro‐7‐cyanobicyclo(4.2.0)octan‐8‐one (Prepared from Chlorocyanoketene).
Authors: FISHBEIN P. L. , MOORE H. W.
Published: May 2016

Mucochloric acid (I) is converted to the O‐isopropyl derivative (III) which is treated with sodium azide (IV), yielding the azidochloroisopropoxy‐2(5H)‐furanone (V).
ChemInform Abstract: New Approach to Enantiomerically Pure β‐Lactams from α‐Amino Acids by Applying the Isonitrile‐Nitrile Rearrangement.
Authors: HAAF K. , RUECHARDT C. +
Published: May 2016

In the conversion of (S)‐phenylalanine (I) into the azetidinone (VII), the key step is the stereospecific isonitrile‐nitrile rearrangement (IV) → (V) by flash pyrolysis.
ChemInform Abstract: Synthesis and Configuration of 4‐Alkyl‐2‐methyl‐3,4‐diphenyl‐1,2‐thiazetidine 1,1‐Dioxide.
Authors: GRUNDER E. , LECLERC G. , EHRHARDT J.‐D.
Published: May 2016

Alkylation of the anion generated from (I) is examined using different alkyl halides.
ChemInform Abstract: Reinvestigation of the Base‐Induced Ring Closure of Methylsulfonium Salts of N‐Trityl‐(S)‐methioninehydroxamide and Derivatives.
Authors: PAPAIOANNOU D. , BARLOS K. , FRANCIS G. W. , BREKKE T. , AKSNES D. W. , MAARTMANN‐MOE K.
Published: May 2016

The title reaction of the substrate (III) provides five‐membered heterocycles such as (IV) together with a by‐product previously believed to be the oxazinone (VII).
ChemInform Abstract: Dianion‐Based Methodology for the Preparation of 2,3‐Disubstituted Butyrolactones.
Authors: BELLETIRE J. L. , MAHMOODI N. O.
Published: May 2016

The dianions, generated from the N‐acylbenzenesulfonamides (I), are coupled with the sodium salts of the α‐iodocarboxylic acids (II) to produce the 1,4‐dicarboxylic acid monosulfonamides (III).
ChemInform Abstract: Synthesis and Biological Activity of New HMG‐CoA Reductase Inhibitors. Part 2. Derivatives of 7‐(1H‐Pyrrol‐3‐yl)‐Substituted‐3,5‐dihydroxyhept‐6E‐enoic (‐heptanoic) Acids.
Authors: JENDRALLA H. , BAADER E. , BARTMANN W. , BECK G. , BERGMANN A. , GRANZER E. , VON KEREKJARTO B. , KESSELER K. , KRAUSE R. , SCHUBERT W. , WESS G.
Published: May 2016

The heptenoic acid esters (VI) are prepared by coupling the aldehydes (III) with the dication of the acetoacetate (IV) followed by stereoselective reduction of the keto esters (V).
ChemInform Abstract: Reactions of Tetrafluoroethene Oligomers. Part 12. Cycloaddition Reactions of 3,3,4,4,4‐Pentafluoro‐2‐pentafluoroethyl‐2‐trifluoromethyldiazobutane. A Novel Synthesis of Pyrazoles.
Authors: COE P. L. , COOK M. I.
Published: May 2016

The diazoalkane (I) mentioned in the title reacts with various propenoic acid derivatives (II) under exclusion of light to give the pyrazoles (III) accompanied by the fluoroalkane (IV) and the fluoroalkene (V) respectively.
ChemInform Abstract: A Reinvestigation of the Reaction Between Quinoline and Calcium Hydride.
Authors: OSBORNE A. G. , STALEY M. L.
Published: May 2016

Contrary to what has been reported by Reich and Serpek (1920), quinoline (I) does not react with CaH2.
ChemInform Abstract: Synthesis and Antiviral Activity of 9‐Alkoxypurines. Part 1. 9‐(3‐Hydroxypropoxy)‐ and 9‐(3‐Hydroxy‐2‐(hydroxymethyl)propoxy)purines.
Authors: HARNDEN M. R. , WYATT P. G. , BOYD M. R. , SUTTON D.
Published: May 2016

The diprotected triol (I) reacts with N‐hydroxyphthalimide (II) under Mitsunobo conditions to give the derivative (III) which is cleaved, yielding the O‐alkylhydroxylamine (IV).
ChemInform Abstract: Hetero π‐Systems. Part 18. Highly Substituted 2,4‐Di‐tert.‐butyl‐1‐boracyclohexadienes.
Authors: MAIER G. , WOLF H.‐J. , BOESE R.
Published: May 2016

The boracyclohexadienes (X) with three bulky groups are synthesized from the stannacyclohexadiene (I) as shown.
ChemInform Abstract: Organic Syntheses via Transition Metal Complexes. Part 43. 2‐Azaallenyl Chromium Complexes; Insertion of 1‐Aminopropyne into M=C and C=O Bonds; Intramolecular Cyclopropanation and (3 + 2) Cycloaddition with Formation of a 1,3‐Diaminoindene.
Authors: AUMANN R. , HEINEN H. , KRUEGER C. + , BETZ P.
Published: May 2016

The 2‐azaallenyl‐Cr complex (I) adds to the 1‐aminopropyne (II) to give the aminocarbene complexes (IIIa) and (IIIb) (by insertion of (II) into the M‐C bond of (I)) as well as the 1,3‐diaminoindene (IV) (by (3 + 2) cycloaddition), and the iminocarbene complex (V) (by insertion of (II) into the C=O bond of (I)).
ChemInform Abstract: Halido‐Thiolate Complexes of Mo(III), Mo(IV) and Mo(V): Synthesis, Characterization and Crystal and Molecular Structures of (MoCl4(SC5H2NH‐3,6‐(SiMe2tBu)2)2), (Ph4P)(MoBr4(SC5H3NH‐3‐SiMe3)2), (MoBr3(SC5H3NH‐3‐SiMe3)3) and (Ph4P)(MoOBr3(SC5H3N‐3‐SiMe3)).
Authors: BLOCK E. , GERNON M. , KANG H. , LIU S. , ZUBIETA J.
Published: May 2016

In the complexes (III) (space group P1, Z=2), (V) (Pbca, Z = 8), and (VIII) (Pbcn, Z=4) the 2‐pyridinthiols (I) and (VI) act as neutral ligand in their thione form, while in the ionic complex (IV) (C2/c, Z = 8) the ligand is bound as a N,S‐bidentate thiolate.
ChemInform Abstract: Anionic Pentacoordinated Complexes of Iron(II) Containing Pyridine N‐Oxide, γ‐Picoline N‐Oxide, Ascorbic Acid and Pseudohalides.
Authors: KANUNGO B. K.
Published: May 2016

The novel complexes (I) are prepared by the reaction of FeSO4·7 H2O with KCNO, NaCNS or NaN3 and the ligands in the appropriate ratio in mixed water‐ethanol medium (no yields given).
ChemInform Abstract: Synthesis of 9,10‐Bishetarylanthracenes and Their Application on Polyester Fibres as Disperse Dyes.
Authors: RANGNEKAR D. W. , RAJADHYAKSHA D. D.
Published: May 2016

9,10‐Dicyanoanthracene (IV), prepared from anthracene (I) via bromination and subsequent heating with cuprous cyanide (III), is subjected to cyclocondensation with o‐phenylenediamine (Va), o‐aminophenol (Vb), or 1‐cyanoguanidine (VII), yielding the title compounds (VI) or (VIII).
ChemInform Abstract: Synthesis and Biological Activities of New Analogues of Thymopoietin II (32‐36).
Authors: NAWROCKA‐BOLEWSKA E. , SIEMION I. Z. , MIHELIC M. , VOELTER W.
Published: May 2016

The title pentapeptide fragment (I) shows similar biological activities as does the parent molecule, also induces E‐rosette formation and enhances phagocytosis.
ChemInform Abstract: Synthesis and Characterisation of Diastereomeric (4S)‐3‐Acetyl‐2‐aryl‐5,5‐dimethyl‐4‐thiazolidinecarboxylic Acids.
Authors: GYOERGYDEAK Z. + , KAJTAR J. , KAJTAR M. , KAJTAR‐PEREDY M.
Published: May 2016

The condensation of D‐penicillamine (I) with aromatic aldehydes such as (II) gives the thiazolidinecarboxylic acids (III) and (IV) with alternating diastereoselectivity in position 2. Acetylation of these diastereomeric product mixtures affords the title compounds (VI) as sole cis isomers.
ChemInform Abstract: Asymmetric Induction of Four Chiral Centers by Hetero Diels‐Alder Reaction of a Chiral Nitroso Dienophile.
Authors: WERBITZKY O. , KLIER K. , FELBER H.
Published: May 2016

The reaction of the cis‐cyclohexadiene (I) with the chiral nitroso dienophile (II) occurs with induction of four asymmetric centers in very high optical yield to give the dihydro oxazine (III).
ChemInform Abstract: Reduction in Aluminum Alloy Attack on Aluminosilicate Refractories by Addition of Rare‐Earth Oxides.
Authors: O'BRIEN M. H. , AKINC M.
Published: May 2016

The corrosion of several aluminosilicate refractories by molten 7075 Al alloy with and without addition of Na2CO3 is studied as a function of the composition of the refractory material.
ChemInform Abstract: A Study of Peroxide‐Modified Titanium Dioxide (Anatase)
Authors: KLISSURSKI D. , HADJIIVANOV K. , KANTCHEVA M. , GYUROVA L.
Published: May 2016

is performed by means of XRD, diffuse‐reflectance UV‐VIS spectroscopy, IR, ESR, and thermal desorption measurements.
ChemInform Abstract: Ba2CuO2I: A Compound with a New Structure Type and a Communication on Ba2CuO2Br with Ba2CuO2Cl‐Structure.
Authors: BOEHLKE A. , MUELLER‐BUSCHBAUM HK. +
Published: May 2016

Ba2CuO2I (I) and Ba2CuO2Br (II) are prepared by heating mixtures of BaO and CuI (CuBr) at 700 °C (750 °C) for 36 h (BaO:CuX = 2:1 (X: I, Br), vacuum‐sealed Cu‐bomb).
ChemInform Abstract: Adducts of 1‐Vinylimidazole, 1‐Benzylimidazole, and 1,2,4‐Triazole with Tin(II) Chloride.
Authors: VASNIN S. V. , CETRULLO J. , GEANANGEL R. A. , BERNAL I.
Published: May 2016

According to methods described previously, the new title complexes are prepared in nearly quantitative yields.
ChemInform Abstract: Propene Metathesis on MoO3‐x/Al2O3 Catalysts; Effect of Diazomethane Decomposition.
Authors: GHAZI M. , SACHTLER W. M. H.
Published: May 2016

Propene metathesis is studied at 295 K and 1 atm in He or in H2 with catalysts reduced at 673 K, sometimes modified by exposing them to CH2N2 vapor prior to testing.
ChemInform Abstract: Highly Active Heterogeneous Rhodium Catalysts for the Liquid‐Phase Hydrogenation of Aromatic and Other Unsaturated Compounds Under Mild Conditions.
Authors: TIMMER K. , THEWISSEN D. H. M. W. , MEINEMA H. A. , BULTEN E. J.
Published: May 2016

The catalysts (Rh on support) are prepared by pyrolysis of Rh4(CO)12, dispersed on support, e.g. SrTiO3, TiO2‐anatase, ‐rutile, BaTiO3 or SrZrO3.
ChemInform Abstract: Aluminum‐Mediated One‐Pot Conversion of α‐Amino Acid Esters to threo‐2‐Amino Alcohols with High Diastereoselectivity.
Authors: KANO S. , YUASA Y. , YOKOMATSU T. , SHIBUYA S.
Published: May 2016

The N‐Cbz‐protected (S)‐amino acid esters (I) are reduced with diisobutylaluminum hydride and subsequently treated with the Grignard reagents (II) to give diastereomeric mixtures of the 2‐amino alcohols (III) with the predominance of the threo‐isomers.
ChemInform Abstract: Homogeneous Gas‐Phase Decyclization of Tetralin and Benzocyclobutene.
Authors: TSANG W. , CUI J. P.
Published: May 2016

Tetralin is decomposed in single pulse shock tube experiments in the temp. range of 1000‐1400 K. The initial unimolecular decomposition channels involve the formation of benzocyclobutene and o‐allyltoluene.
ChemInform Abstract: Generation and Trapping of (Thiophen‐3‐yl)halogenocarbenes from 3‐Dihalogenomethylthiophenes or 3‐Chloro‐3‐(thiophen‐3‐yl)diazirine.
Authors: BAIRD M. S. , BRUCE I.
Published: May 2016

The carbenes (III), generated from dihalogenomethylthiophenes such as (I), can be trapped by alkenes such as (II) to give cyclopropanes, which in some cases undergo ring‐opening to dienes (cf.
ChemInform Abstract: A Study of the Metastable Dissociations of Formate Esters: A McLafferty Rearrangement to a Distonic Radical Cation.
Authors: ZHA Q. , HAYES R. N. , NISHIMURA T. , MEISELS G. G. , GROSS M. L.
Published: May 2016

The metastable dissociations of formate ester radical cations (H‐CO‐O‐R)·+ (R: ‐Pr, ‐Bu) are studied by using threshold photoelectron photoion coincidence (PEPICO) and tandem mass spectrometry.
ChemInform Abstract: Silafunctional Compounds in Organic Synthesis. Part 44. Palladium‐Catalyzed Cross‐Coupling Reaction of Alkenylalkoxysilanes with Aryl and Alkenyl Halides in the Presence of a Fluoride Ion.
Authors: TAMAO K. , KOBAYASHI K. , ITO Y.
Published: May 2016

The reaction mentioned in the title is catalyzed by bis(allylpalladium chloride).
ChemInform Abstract: Synthesis of α,β‐Unsaturated Thiocarboxylic Acid S‐Esters via Horner‐Emmons Olefination.
Authors: SCHAUMANN E. , MERGARDT B. , FITTKAU S.
Published: May 2016

The phosphonates (I) are deprotonated and then coupled with the thiolocarboxylic acid chlorides (II) to form the β‐(alkylthiocarbonyl)phosphonates (III).
ChemInform Abstract: Activation of a Single Aromatic Ligand in (Fe(η6‐C6Me6)2)2+(PF‐ 6)2: Bifunctionalization via Protection by Hydride.
Authors: MANDON D. , ASTRUC D.
Published: May 2016

Reactions of carbanions with the title complex (I) often give electron‐transfer products without C‐C bond formation.
ChemInform Abstract: Generation and Alkylation Reaction of Lithium 1‐Halocyclopropylzincate.
Authors: HARADA T. , HATTORI K. , KATSUHIRA T. , OKU A.
Published: May 2016

The geminal dibromocyclopropanes (I) are metalated with the lithium organozincates (II) at ‐85°C and then warmed to 0°C before acidic work‐up to give mixtures of the cis‐ (III) and trans‐disubstituted cyclopropanes (IV).
ChemInform Abstract: An Efficient Synthesis of 2(5H)‐Furanone and Furan Derivatives Using 3‐(Phenylthio)propenal as a 1,3‐Dipolar Synthon.
Authors: WATANABE M. , TSUKAZAKI M. , HIRAKAWA Y. , IWAO M. , FURUKAWA S.
Published: May 2016

The phenylthiopropenal (IV), prepared from acrolein (I) via 3‐(phenylthio)propionaldehyde (III), is converted into the 5‐substituted 3‐phenylthiofuranones (VII) by coupling with the organolithium compounds (V), lithiation with sBuLi and subsequent carboxylation.
ChemInform Abstract: An Efficient Synthesis of Phthalides by Diels‐Alder Reaction of Sulfur‐Substituted Furanones with Silyloxy Dienes: A Formal Synthesis of Mycophenolic Acid.
Authors: WATANABE M. , TSUKAZAKI M. , HAMADA Y. , IWAO M. , FURUKAWA S.
Published: May 2016

Ring closure reaction of the unsaturated ketene silyl acetals (I) with the phenylsulfinylbutenolides (II), prepared from the corresponding thioethers, gives the hydroxymethoxyphthalides (III) as the main products.
ChemInform Abstract: Synthesis of Polyimidazoles as Biomimetic Ligands for Metalloprotein Active Site Modeling.
Authors: MULLIEZ E.
Published: May 2016

4,6‐Dichloro‐5‐nitropyrimidine (II) reacts with the 3‐imidazolyl‐2‐aminopropionaldehyde acetal (I) to form the diaminopyrimidine (III) which is cyclized upon treatment with acid and then reduced with dithionite, yielding the tetraimidazole (V).
ChemInform Abstract: Direct Anomeric Substitution of Pyranyl Esters Using Organocopper Reagents.
Authors: BOLITT V. , MIOSKOWSKI C. , FALCK J. R.
Published: May 2016

Treatment of the tetrahydropyranyl dimethoxybenzoate (I) with the organocuprates (II) or (IV) results in the formation of the 2‐substituted tetrahydropyrans (III).
ChemInform Abstract: The Imine‐Epoxide Rearrangement in the Formation of trans‐2,6‐Disubstituted Piperidines. A Stereoselective Synthesis of (.+‐.)‐Teneraic Acid.
Authors: WASSERMAN H. H. , RODRIQUES K. , KUCHARCZYK R.
Published: May 2016

The pentenyl bromomethyl ketone (I) is converted to the acetate (III) and then epoxidized to form the epoxy ketone (IV).
ChemInform Abstract: Synthetic Studies on 1,4‐Benzodioxin: The Preparation of Analogues of Biologically Important Indoles.
Authors: LEE T. V. , LEIGH A. J. , CHAPLEO C. B.
Published: May 2016

With a view to their potential pharmacological activity, the benzodioxins of type (V) and (VIII) and their ring‐opened derivatives (VI) and (IX), resp., are synthesized.
ChemInform Abstract: Studies on Pyrimidine Derivatives. Part 41. Palladium‐Catalyzed Cross‐Coupling Reaction of Halopyrimidines with Aryl‐ and Vinyltributylstannanes.
Authors: KONDO Y. , WATANABE R. , SAKAMOTO T. , YAMANAKA H.
Published: May 2016

The palladium‐catalyzed cross‐coupling of the halopyrimidines (I), (IV), and (VI) with the aryl‐ and vinyltributylstannanes (II) produces the corresponding aryl‐ and vinylpyrimidines (III), (V), and (VII) respectively.
ChemInform Abstract: Condensed Heteroaromatic Ring Systems. Part 16. Synthesis of Pyrrolo‐(2,3‐d)pyrimidine Derivatives.
Authors: KONDO Y. , WATANABE R. , SAKAMOTO T. , YAMANAKA H.
Published: May 2016

The dihalopyrimidines (I) react with methanesulfonamide (II) in the presence of sodium hydride to give the N‐(halopyrimidinyl)methanesulfonamides (III) which are cyclized with the alkynes (IV) in the presence of a palladium(II) complex, producing the pyrrolopyrimidines (V).
ChemInform Abstract: 5‐Fluorouracil Derivatives with Serum Protein Binding Potencies.
Authors: YAMASHITA S. , SUDA Y. , MASADA M. , NADAI T. , SUMI M.
Published: May 2016

5‐Fluorouracil (I) is N‐alkylated with the benzyl bromides (II) to give the 1‐benzyl derivatives (III).
ChemInform Abstract: Cyclophanes. Part 33. 2,11‐Dithia(3.3)(5,6)indanoorthocyclophane and 2,11‐Dithia(3.3)(5,6)indanocyclophane. Synthesis, DNMR, and X‐Ray Structure Analysis.
Authors: BODWELL G. , ERNST L. , HOPF H. , JONES P. G.
Published: May 2016

The cyclopentenecarboxaldehyde (I) reacts with the phosphonate (II) to form the diene (III) which undergoes cycloaddition reaction with ethyl propiolate (IV), followed by dehydrogenation, yielding the regioisomeric indandicarboxylates (V) and (VI).
ChemInform Abstract: Free Radical Ring‐Expansion Leading to Novel Six‐ and Seven‐Membered Heterocycles.
Authors: DOWD P. , CHOI S.‐C.
Published: May 2016

The cyclic β‐keto esters (I) are phenylselenenylmethylated and then subjected to radical‐induced deselenation, forming the ring‐expanded γ‐keto esters (IV), together with the α‐methylated analogues (V) of (I).
ChemInform Abstract: Synthesis of 10‐Aryl‐3a,9‐dihydro‐1H,3H‐furo(4,3‐b)(1,5)benzothiazepin‐1‐ones.
Authors: MATSUO K. , HASUIKE Y.
Published: May 2016

The butanolide (I) is coupled with the aldehydes (II) to give the arylmethylenebutanolides (III) which are brominated with NBS to give the bromides (IV).
ChemInform Abstract: Synthesis and Characterization by 1H, 13C, and 19F NMR Spectroscopy of (CH3CN)n(CO)4‐n(NO)W(μ‐F)BF3 and ((CH3CN)n+1(CO)4‐n(NO)W)(BF4) (n = 0‐2), Tungsten Mononitrosyl Carbonyl Cations with Labile Acetonitrile and ((μ‐F)BF3)‐ Ligands.
Authors: HERSH W. H.
Published: May 2016

Nitrosylation of the complex (I) with (II) yields a complex mixture of the five products (III)‐(VII).
ChemInform Abstract: Pseudohalogeno Metal Compounds. Part 73. γ‐Oxoisocyanide Complexes of Iron(II), Ruthenium(II), Palladium(II), and Platinum(II) from Cyano Complexes and α,β‐Unsaturated Carbonyl Compounds in the Presence of Et2O‐HBF4. Crystal Structure of cis‐(phen)2Fe(CNC(CH3)2CH2C(O)CH=C(CH3)2)2+ 2(BF‐ 4)2.
Authors: WEIGAND W. , NAGEL U. , BECK W.
Published: May 2016

Some examples of a variety of the title complexes (III), (IV), (VI), (VIII) and (XI) (tables) prepared are outlined in the scheme.
ChemInform Abstract: Enantioselective Synthesis of Optically Pure Natural (S)‐(+)‐ or Unnatural (R)‐(‐)‐DABA.
Authors: SOLLADIE‐CAVALLO A. , SIMON M. C.
Published: May 2016

The chiral 2‐hydroxypinen‐3‐one (I) is converted to the imine (III) which is deprotonated under various conditions and then substituted with bromoacetonitrile (IV) to give the diastereomeric nitriles (V).
ChemInform Abstract: The High Tc Phase (n = 3) in the Bi‐Pb‐Sr‐Ca‐Cu‐O System.
Authors: LOESCH S. + , SCHLICHENMAIER M. , KEMMLER‐SACK S. , SCHOELL C. + , DOETTINGER S. + , FORKEL W. , KOELLE D. + , GROSS R. , HUEBENER R. P.
Published: May 2016

The influence of small changes in the composition on the superconducting properties of the high Tc phase Bi2‐xPbxSr2Ca2Cu3O10+z (x ∼0.25) is studied.
ChemInform Abstract: Production and Characterization of Diodes Made in Thin p‐Se Layers on Top of n‐CdSe.
Authors: KAMPMANN A. , MARCU V. , STREHBLOW H.‐H.
Published: May 2016

CdSe/Se thin‐layer junctions are prepared either by electrodeposition from SeO2 in a pH 5 buffer at 298 and 353 K, or by photocorrosion of CdSe single crystals and their photoelectrochemical behavior is examined in phthalate buffer (pH 5) with and without redox species (K3(Fe(CN)6), K4(Fe(CN)6), and SeO2).
ChemInform Abstract: Synthesis and Crystal Structure of the Tetraamido Aluminates of Rubidium and Cesium, Rb(Al(NH2)4) and Cs(Al(NH2)4).
Authors: JACOBS H. , JAENICHEN K. +
Published: May 2016

The title compounds are prepared by reaction of the metals with ammonia in an autoclave.
ChemInform Abstract: 13C NMR Spectroscopic Structure Analysis of 1,10‐Dithia Crown Ethers and Related Dithiacyclophanes.
Authors: KLEINPETER E. , HOLLMANN K. , MUEHLSTAEDT M. +
Published: May 2016

Dithia crown ethers (preparable from catechol bis(allyl)ether + SCl2) eventually have anti‐Markovnikov (I) or Markovnikov structure (II) as is possible for dithiacyclophanes (III)/(IV).
ChemInform Abstract: Optically Active N‐Chloro‐2,2‐bismethoxycarbonylaziridine by Enzymatic Hydrolysis.
Authors: BUCCIARELLI M. , FORNI A. , MORETTI I. , PRATI F.
Published: May 2016

Enzymatic hydrolysis of the racemic title compound (I) leads to the unreacted, optically active forms (+)‐(I) and (‐)‐(I).
ChemInform Abstract: Photolysis of Triarylmethylphosphonic Acids and Their Esters.
Authors: SHI M. , OKAMOTO Y. , TAKAMUKU S.
Published: May 2016

On irradiation in an alkaline alcohol solution, triphenylmethylphosphonic acid (IV) and their ring‐substituted derivatives undergo C‐P bond cleavage to give triarylmethane e.g. (I) and alkyl dihydrogenphosphates e.g. (II), while, in an acidic or a neutral alcohol solution, they afford biaryls e.g. (V).
ChemInform Abstract: Regiochemical Trends in Intramolecular (2 + 2) Photocycloadditions of 6‐(Prop‐2‐enyl)cyclohex‐2‐enones and 5‐(Prop‐2‐enyl)cyclopent‐2‐enones.
Authors: CRUCIANI G. , MARGARETHA P.
Published: May 2016

The effect of substituents R1, R2, R3 on the photoisomerization of the title compounds (I) and (IV) in MeCN is studied.
ChemInform Abstract: Hydroboration of 1‐Alkylthio‐1‐alkynes, and Its Application to the Syntheses of S‐Alkyl Alkanethioates and (Z)‐1‐Alkylthio‐1‐alkenes.
Authors: HOSHI M. , MASUDA Y. , ARASE A.
Published: May 2016

Hydroboration of alkyl‐ or arylthioalkynes such as (I) with the borane (II) leads to an addition of the boryl group mostly to the α‐position of the triple bond.
ChemInform Abstract: Enantiotoposelective PLE‐Catalyzed Hydrolysis of cis‐5‐Substituted‐1,3‐diacyloxycyclohexanes. Preparation of Some Useful Chiral Building Blocks.
Authors: CARDA M. , VAN DER EYCKEN J. , VANDEWALLE M.
Published: May 2016

The PLE‐catalyzed hydrolysis of prochiral cis‐diacetoxycyclohexanes such as (I) or (V) proceeds with high enantiotoposelectivity to give the monoalcohols (II) or (VI).
ChemInform Abstract: 7,7‐Dimethyltricyclo(3.3.0.02,8)octan‐3‐ones as Synthetic Intermediates. Part 4. A Further Examination of Cyclopropane Ring Opening in the Tricyclo(3.3.0.02,8)octan‐3‐one System.
Authors: IMANISHI T. , YAMASHITA M. , MATSUI M. , TANAKA T. , IWATA C.
Published: May 2016

Reaction of the bicyclo(3.2.1)octanone (I) with ethyl formate (II) yields only the enol (III) and not the regioisomer (IV).
ChemInform Abstract: Efficient Entry to Bicyclic Lactones via van Halban‐White Cyclizations.
Authors: BRANDVOLD T. A. , WULFF W. D. , RHEINGOLD A. L.
Published: May 2016

Bi‐ and tricyclic lactones such as (III) or (VI) can be obtained in moderate to excellent yields by the reaction of alkenylcarbene complexes such as (I) or (V) with acetylenic carbonyl compounds such as (II).
ChemInform Abstract: Complex Pyrrolidines via a Tandem Michael Reaction/1,3‐Dipolar Cycloaddition Sequence. A Novel Method for the Generation of Unsymmetrical Azomethine Ylides.
Authors: GARNER P. , ARYA F. , HO W.‐B.
Published: May 2016

BF3‐catalyzed Michael addition reaction of the acrylates (II) with the pyrazinone (I) yields azomethine ylides which undergo intramolecular 1,3‐dipolar cycloaddition to form the bicyclic diamines (III), together with minor amounts of the pyrrolidines (IV).
ChemInform Abstract: Potential Antisecretory Antidiarrheals. Part 2. α2‐Adrenergic 2‐((Aryloxy)alkyl)imidazolines.
Authors: MOORMANN A. E. , PITZELE B. S. , JONES P. H. , GULLIKSON G. W. , ALBIN D. , YU S. S. , BIANCHI R. G. , SANGUINETTI E. L. , RUBIN B. , GREBNER M. , MONROY M. , KELLAR P. , CASLER J.
Published: May 2016

The bromo ester (I) is coupled with the phenols (II) to produce the corresponding α‐phenoxy esters (III) which are transformed into the imidazolines (V) mentioned in the title by cyclocondensation with the diamines (IV).
ChemInform Abstract: Nitriles in Heterocyclic Synthesis: A Novel Route for the Synthesis of Naphthodipyrans, Pyridines. 2H‐ and 4H‐Pyrans.
Authors: ELAGAMEY A. G. A. , EL‐TAWEEL F. M. A. , SOWELLIM S. Z. A. , SOFAN M. A. , ELNAGDI M. H.
Published: May 2016

Depending on the conditions the reaction of the title nitriles, e.g. (II), with naphthalenediols leads to 1:1 adducts such as (III) or 2:1 adducts of type (IV) or (VI).
ChemInform Abstract: Studies on Coumarin Derivatives. Part 9. Reaction of Mercaptoacetic Acid and Chloroacetyl Chloride with Benzalamino Thiazolyl Coumarins.
Authors: VEERABHADRAIAH U. , RAO V. R. , RAO T. V. P.
Published: May 2016

The reaction of the title compounds (III) with mercaptoacetic acid (IV) proceeds regiospecifically at the azomethine bond to afford the thiazolidinones (V), whereas the reaction with chloroacetyl chloride (VI) yields the chloroacetamido derivative (VII) instead of the expected β‐lactams (VIII).
ChemInform Abstract: New Thioacylating Reagents: 1‐Methyl‐2‐thioacylthiopyridinium Salts (III).
Authors: KATO S. , MASUMOTO H. , IKEDA S. , ITOH M. , MURAI T. , ISHIHARA H.
Published: May 2016

The dithio ester salts (III) (recently (1986) suggested to be intermediates in the preparation of sulfides) are now isolated by the use of CHCl3/MeOH as the solvent.
ChemInform Abstract: Design of an Antithrombotic‐Antihypertensive Agent (Wy 27569). Synthesis and Evaluation of a Series of 2‐Heteroaryl‐Disubstituted Dihydropyridines.
Authors: ARCHIBALD J. L. , BRADLEY G. , OPALKO A. , WARD T. J. , WHITE J. C. , ENNIS C. , SHEPPERSON N. B.
Published: May 2016

The dihydropyridines mentioned in the title, e.g. (IV), (VIII), and (XIV), are prepared on different synthetic routes partly outlined in the reaction scheme.
ChemInform Abstract: Synthesis of Quinazoline Derivatives by the (4 + 2)Cycloaddition of 2,1‐Benzisoxazoles with 3‐Imidazoline‐2,5‐diones.
Authors: OHTA K. , NAKAMURA Y. , IWAOKA J. , NOMURA Y.
Published: May 2016

The quinazolines (III) are formed by (4 + 2)cycloaddition of the 2,1‐benzisoxazoles (I) with the methoxyimidazolidinediones (II) in the presence of TiCl4.
ChemInform Abstract: Preparation and Chemistry of Me3SiCH2AsH2; Preparation of (Me3SiCH2(H)AsGaPh2)3, a Trimeric Mono(arsino)gallane Containing a Hydrogen Bonded to Arsenic. Isolation and X‐Ray Crystal Structure of (Me3SiCH2As)5.
Authors: WELLS R. L. , KWAG C.‐Y. , PURDY A. P. , MCPHAIL A. T. , PITT C. G.
Published: May 2016

The title arsine (II) is prepared and converted into its bis(trimethylsilyl) derivative (IV).
ChemInform Abstract: Carbon‐Unsubstituted Germoles: Palladium‐Catalyzed Reactions of Germylenes with Acetylene.
Authors: TSUMURAYA T. , ANDO W.
Published: May 2016

Dimesityl‐ and dibutylgermylenes, generated in situ from (I) and (V), react with acetylene (II) in the presence of a Pd‐catalyst to yield the title germoles (III) and (VI).
ChemInform Abstract: Reaction of Germanium Tetrahalides with Trialkylvinyloxysilanes.
Authors: EFIMOVA I. V. , ZVORYKIN I. E. , TROSTYANSKAYA I. G. , KAZANKOVA M. A.
Published: May 2016

Reaction of the vinyloxysilanes (II) with the germanium tetrahalides (I) gives the trihalogermylvinyloxysilanes (III).
ChemInform Abstract: Perfluoromethyl‐Element Ligands. Part 39. Chromium Pentacarbonyl Complexes of Diels‐Alder Adducts of Bis(trifluoromethyl)diphosphene.
Authors: GROBE J. , GROSSPIETSCH T. , LE VAN D. , SCHULZE J. , KREBS B. , DARTMANN M.
Published: May 2016

The reactions of the corresponding Diels‐Alder adducts of bis(trifluoromethyl)diphosphene e.g. (II) with the photochemically generated Cr pentacarbonyl (I) lead to the mono‐ and dinuclear Cr complexes (III)‐(XI) (yield 30‐56%) depending on the molar ratio.
ChemInform Abstract: A Dichromium(II) Compound that Avoids Cr‐Cr Bond Formation by Adopting a Bizarre Structure: Cr2Cl4(dmpm)2.
Authors: COTTON F. A. , LUCK R. L. , SON K.‐A.
Published: May 2016

The paramagnetic title compound (II) crystallizes in the space group P21/n with Z=2.
ChemInform Abstract: Reductive Cleavage of Ketonic Carbon‐Oxygen Bonds in the Reactions Between Ketones and Ditungsten Hexaalkoxides. Structural Characterization of a Ditungsten μ‐Propylidene Derivative.
Authors: CHISHOLM M. H. , FOLTING K. , KLANG J. A.
Published: May 2016

The reductive coupling of acetone (II) to give tetramethylethylene in the reaction involving ditungsten hexaalkoxides proceeds in a two‐step process.