bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis and NMR Characterization of New Aminomethylenephosphines.
Authors: THOMA R. J. , PRIETO C. A. , NEILSON R. H.
Published: May 2016

Treatment of the chlorophosphines (III) prepared as shown with Li disilylamide (IV) generally gives separable mixtures of the nucleophilic substitution products (V) and the desired dehydrohalogenation products, the methylenephosphines (VI).
ChemInform Abstract: Reaction of Trimethyl Phosphite with 2‐Methyl‐3,4,5‐triphenylcyclopentadienone.
Authors: ARBUZOV B. A. , FUZHENKOVA A. V. , TYRYSHKIN N. I.
Published: May 2016

Reaction of the cyclopentadienone (I) with trimethyl phosphite (II) gives the phosphate (III), together with several isomers which are not isolated.
ChemInform Abstract: Neutral Mono‐ and Dipodands with Terminal Phosphinoylphenyl Groups.
Authors: TSVETKOV E. N. , SYUNDYUKOVA V. KH. , BAULIN V. E.
Published: May 2016

The o‐phosphinoylphenolates (I) are coupled with the tosylates (II) and (IV) or the bis(chloromethyl)phosphine oxide (VI) to give the dipodands (III), (V), and (VII).
ChemInform Abstract: Reaction of Olefins with Se‐Phenyl (Selenothioperoxy)benzoate: A New Anti‐Markownikoff Benzeneselenenylation.
Authors: TORU T. , SEKO T. , MAEKAWA E. , UENO Y.
Published: May 2016

The addition of the selenosulfide (XII) to the terminal olefins (I) proceeds regiospecifically to give the anti‐Markownikoff adducts (II), which undergo oxidation‐elimination to yield the vinyl thiobenzoates (III), (IV) and/or the allyl thiobenzoates (V)/(VI).
ChemInform Abstract: Synthesis and Structure of Niobium(V) and Tantalum(V) Organoimido Compounds Containing 2,6‐Diphenylphenoxide Ligation.
Authors: CHESNUT R. W. , FANWICK P. E. , ROTHWELL I. P.
Published: May 2016

The addition of the phenol (II) to the pentaamides (I) results in the rapid evolution of dimethylamine and formation of the imido complexes (III).
ChemInform Abstract: Electron Transfer. Part 90. Further Oxidations of Vitamin B12r (Cob(II)alamin)
Authors: BALASUBRAMANIAN P. N. , PILLAI G. C. , CARLSON R. R. , LINN D. E. JUN. , GOULD E. S.
Published: May 2016

Vitamin B12r, the Co(II) derivative of vitamin B12, reduces Fe(III) to Fe(II), V(V) to V(IV) and (BrO2)‐ to Br‐ in aqueous solution.
ChemInform Abstract: Electrochemical and Spectral Characterization of the Monomer‐Dimer Equilibrium Involving (meso‐Tetrakis(1‐methylpyridinium‐4‐yl)porphinato)nickel(II) in Dimethylformamide.
Authors: KADISH K. M. , SAZOU D. , LIU Y. M. , SAOIABI A. , FERHAT M. , GUILARD R.
Published: May 2016

Different electrochemical techniques are combined with ESR, NMR and electronic absorption spectroscopy to investigate the monomer‐dimer equilibrium of the title complex as its perchlorate salt.
ChemInform Abstract: Hydroxide‐Assisted Stereospecific Isomerization of a trans‐Dichloro Bis Chelate of Ruthenium(II).
Authors: BAO T. , KRAUSE K. , KRAUSE R. A.
Published: May 2016

The conversion of the trans‐γ isomer (I) into the cis‐β isomer (II) or into the cis‐α isomer (III) is achieved according to the scheme.
ChemInform Abstract: Preparation and Characterization of the Pentammine Complexes (Os(NH3)5(NCS))2+ and (Os(NH3)5(NCSe))2+.
Authors: PREETZ W. , BUETJE K. +
Published: May 2016

Evidence of N‐bonding in the new title complexes (III), prepared as shown and purified by ion exchange chromatography on carboxymethyl cellulose, is given by IR and Raman spectra.
ChemInform Abstract: Cholesterol Conversion to δ4‐Cholestenone by Cholesterol Oxidase in Polyphasic Systems: Extension to the Selective Oxidation of 7β‐Hydroxycholesterol.
Authors: LEE K. M. , BIELLMANN J.‐F.
Published: May 2016

The preparative conversion of the 7‐hydroxycholesterol (I) to the Δ4‐7‐hydroxycholestenone (II) is performed using cholesterol oxidase from Streptomyces in a two‐phase system, aqueous buffer/butyl acetate.
ChemInform Abstract: Amino Alcohols as C‐Terminal Protecting Groups in Peptide Synthesis.
Authors: KASHIMA C. , HARADA K. , FUJIOKA Y. , MARUYAMA T. , OMOTE Y.
Published: May 2016

Treatment of L‐amino acids with LiAlH4 affords the corresponding amino alcohols, e.g. (II), with C‐terminal protection.
ChemInform Abstract: Electrochemical Flue Gas Desulfurization. Reactions in a Pyrosulfate‐Based Electrolyte.
Authors: SCOTT K. , FANNON T. , WINNICK J.
Published: May 2016

Whereas in pure K2S2O7 sulfur dioxide is produced, an K2S2O7 electrolyte containing K2SO4 and V2O5 as oxidation enhancer is found to be suitable for use in an electrochemical membrane cell for flue gas desulfurization.
ChemInform Abstract: Single Crystal Electrochemistry of Rhodium. Anion Effects and Order/Disorder Transitions of Clean and Silver Coated Rh(111) Surfaces.
Authors: HOURANI M. , WIECKOWSKI A.
Published: May 2016

It is demonstrated that the Rh(111) single crystal electrode and the Pt(111) electrode have many similar features.
ChemInform Abstract: The Chemical Stability of Sodium Beta′′‐Alumina Electrolyte in Sulfur/Sodium Polysulfide Melts
Authors: LIU M. , DE JONGHE L. C.
Published: May 2016

of different compositions (Na2S2, Na2S3, Na2S4, Na2S5, pure sulfur) is investigated at Na/S battery operation temperatures.
ChemInform Abstract: La2TaO4Cl3 ‐ A New Oxochlorotantalate with TaO5 Building Units
Authors: SCHAFFRATH U. , GRUEHN R.
Published: May 2016

is prepared from LaTaO4 and LaCl3 under the conditions indicated in the scheme.
ChemInform Abstract: New, Improved Syntheses of the Group 6 Oxyhalides, W(O)Cl4, W(O)2Cl2, and Mo(O)2Cl2.
Authors: GIBSON V. C. , KEE T. P. , SHAW A.
Published: May 2016

Hexamethyldisiloxane is found to be a useful reagent for introducing O atoms into the metal coordination sphere of group 6 metal halides or oxyhalides under controlled, mild conditions.
ChemInform Abstract: Spectroelectrochemical (Electronic and FTIR) Studies of Tris(maleonitriledithiolate) Complexes.
Authors: BEST S. P. , CLARK R. J. H. , MCQUEEN R. C. S. , WALTON J. R.
Published: May 2016

The spectroelectrochemical studies of the complexes (I) lead to the spectroscopic characterization of species with z ranging from 1 to 3. For the complexes with z = 1 or 2, the insensitivity of ν(CN) to the identity of the metal indicates that there are no significant π interactions between the metal and ligand orbitals and that the stability of the complex ions is largely a consequence of strong metal‐sulfur σ bonding.
ChemInform Abstract: Organic Synthesis Using PTC. Part 3. Asymmetric Induction in Epoxidation and Michael Addition Reactions of Chalcone Under Phase‐Transfer Conditions Using Optically Active Solvents.
Authors: SINGH P. , ARORA G.
Published: May 2016

Epoxidation and Michael addition reactions of chalcone (I) are performed under phase‐transfer conditions using optically active alcohols as solvent.
ChemInform Abstract: Functionalization of Saturated Hydrocarbons. Part 10. A Comparative Study of Chemical and Electrochemical Processes (Gif and Gif‐Orsay Systems) in Pyridine, in Acetone and in Pyridine‐Cosolvent Mixtures.
Authors: BALAVOINE G. , BARTON D. H. R. , BOIVIN J. , GREF A. , LE COUPANEC P. , OZBALIK N. , PESTANA J. A. X. , RIVIERE H.
Published: May 2016

Cyclohexane (I) and five other saturated hydrocarbons (3‐ethylpentane, methylcyclopentane, cis‐ and trans‐decalin, adamantane) are oxidized by the Gif system A) and its electrochemical equivalent B).
ChemInform Abstract: Bifunctional Annulating Reagents: Studies on the Utility of Novel Tin Based Annulating Reagents in the Preparation of Six‐ and Seven‐Membered Rings.
Authors: LEE T. V. , BOUCHER R. J. , ELLIS K. L. , RICHARDSON K. A.
Published: May 2016

The stannyl acetals (V) undergo reductive coupling with various enol ethers such as (X), (XV), or (XVIII) in the presence of trimethylsilyl triflate and titanium tetrachloride.
ChemInform Abstract: Synthesis of 1,3‐Bisdialkylamino‐2‐(p‐halobenzyloxy)propanes.
Authors: DUNDIENE G. V. , UDRENAITE E. B. , DAUKSHAS V. K.
Published: May 2016

Reaction of epichlorohydrin (I) with the benzyl chlorides (II) gives the 1,3‐dichloropropyl benzyl ethers (III) which are coupled with the secondary amines (IV), producing the title compounds (V).
ChemInform Abstract: Reaction of Diaryl Disulfides with N‐Chloroarenesulfonamide Sodium Salts. N‐Arylthio‐N,N′‐bis(arenesulfonyl)sulfinamidines.
Authors: LEVCHENKO E. S. , PEL'KIS N. P.
Published: May 2016

The sulfinamidines (III) mentioned in the title are prepared from the N‐chlorosulfonamide (II) and the disulfides (Ia) and (Ib) or the dichlorosulfonamide (V) and the silyl ethers (IV).
ChemInform Abstract: The Cine O‐Alkylation of Oxiranyl Carbinols.
Authors: BIRD C. W. , HORMOZI N.
Published: May 2016

Alkylation of the tertiary epoxy alcohols (I) results in a rearrangement, producing the 2‐(alkoxymethyl)‐3,3‐dialkyloxiranes (IIIc) and (IIId).
ChemInform Abstract: Sulfur Heterocycles. Part 5. Further Use of 6,7‐Dihydrobenzo(b)thiophen‐4(5H)‐one in the Synthesis of Substituted Benzo(b)thiophene Derivatives.
Authors: DATTA S. , BHATTACHARYA S. , DE A. , CHAKRAVARTY A. K.
Published: May 2016

The dihydrobenzothiophenones (I) react with malonitrile (II) to give the dicyano compounds (III) which yield the addition products (V) on treatment with MeMgI (IV), whereas reduction of (III) leads to the compounds (VI).
ChemInform Abstract: Synthesis of 3,8‐Dimethyl‐2‐nitro‐3H‐imidazo(4,5‐f)quinoxaline, the 2‐Nitro Analogue of the Food Carcinogen MeIQx.
Authors: GRIVAS S.
Published: May 2016

The 2‐nitro analogues of the so‐called IQ type carcinogens (imidazoquinolin‐ and imidazoquinoxalin‐2‐amines) found in cooked proteinaceous foods may serve as intermediates for the chemical synthesis of reactive metabolites.
ChemInform Abstract: Synthesis of 2‐(2‐Methoxyanilino)‐4‐(benzamido‐2‐yloxy)‐6‐(Substituted‐phenylureido)‐s‐triazine Derivatives and Study of Their Antibacterial Activity.
Authors: DESAI K. R. , DESAI P. H.
Published: May 2016

Coupling of cyanuric chloride (I) with o‐anisidine (II) results in the formation of (III) which reacts with salicylamide (IV) to yield (V).
ChemInform Abstract: Treatment of Alkyltriethoxysilanes with Amberlyst 15 Cation‐Exchange Resin in the Presence of Hexamethyldisiloxane.
Authors: HASEGAWA I. , SAKKA S.
Published: May 2016

The substitution of the alkoxy groups in (I) by trimethylsilyloxy groups in the presence of catalytic amounts of Amberlyst 15 is studied.
ChemInform Abstract: Synthesis and Reactions of Silanes Containing Two Triflate Groups.
Authors: MATYJASZEWSKI K. , CHEN Y. L.
Published: May 2016

The bis(trifluoromethylsulfonyloxy)silanes (III) and (IX) are prepared from the silanes (II) and (VIII) or (X) by treatment with trifluoromethanesulfonic acid (I).
ChemInform Abstract: A Novel Deoxygenation from α,β‐Epoxy Silanes to Vinylsilanes by the Copper‐Catalyzed Grignard Reactions: A Dramatic Effect by Alkoxy Groups on Silicon.
Authors: TAMAO K. , NAKAJO E. , ITO Y.
Published: May 2016

Cleavage of the hexylsilyloxiranes (I) with isopropylmagnesium chloride (II) in the presence of cuprous cyanide results in the formation of the β‐hydroxysilanes (III) and the vinylsilanes (IV).
ChemInform Abstract: Alkynes and Cumulenes. Part 20. Trimethylsilylallenes from Trimethylsilylpropargyl Ethers by Retro Ene Reaction.
Authors: HOPF H. , NAUJOKS E.
Published: May 2016

The propargylic ethers (I) react with butyllithium and trimethylsilyl chloride (II) to give the silylated derivative (III).
ChemInform Abstract: Silicon‐Containing Heterocyclic Compounds. Part 50. Thermal Generation of Dichlorosilylene During the Decomposition of 1,1‐Dichloro‐1‐silacyclo‐2,4‐hexadiene.
Authors: CHERNYSHEV E. A. , KOMALENKOVA N. G. , ZAGORETS D. A. , KEL'MAN M. YA.
Published: May 2016

Pyrolysis of the silacyclohexadiene (Ia) yields cyclopentadiene (III) and the disilabicycloheptane (IV) via the silabicyclohexene (II) which eliminates dichlorosilylene.
ChemInform Abstract: Low‐Coordinated Phosphorus Compounds. Part 65. (1,3)‐Prototropic Reactions with Oxalic Acid Phosphides.
Authors: APPEL R. , HUENERBEIN J. +
Published: May 2016

The phosphine (II) reacts with oxalyl chloride (I) at a low temperature to form the diphosphide (III) which is converted to the enol (IV) at higher temperatures or upon acidic treatment.
ChemInform Abstract: Tin‐Containing Acetylene Aldehydes.
Authors: GIRBASOVA N. V. , KHABIBOV A. M. , ZAVGORODNII V. S. , BOGORADOVSKII E. T. , BELYAEV N. N. , PETROV A. A.
Published: May 2016

Treatment of the stannylacetylenes (I) with ethylmagnesium bromide and subsequent coupling with dimethylformamide (II) give the stannylpropiolaldehyde (III).
ChemInform Abstract: Preparation and Structure of Triorganotin, Triorganolead and Tetraphenylantimony Derivatives of Acetylenedicarboxylic Acid, Terephthalic Acid and Dithioterephthalic Acid.
Authors: GLOWACKI A. , HUBER F. , PREUT H.
Published: May 2016

The 2:1 molar reactions of R3SnOH, R3PbOH or R4SbOH with acetylenedicarboxylic acid or dithioterephthalic acid and of the appropriate chlorides with dipotassium terephthalate in MeOH yield the 2:1 products (I)‐(IV).
ChemInform Abstract: Preparation and Characterization of Cobalt(II), Nickel(II), and Copper(II) Complexes with Water‐Soluble Macrocyclic N4‐Ligands: 6,15‐Diethyl‐4,13‐dihydro‐1,10‐dimethyl‐(E)‐dipyridinio(b,i) (1,4,8,11)tetraazacyclotetradecine Iodide or Methyl Sulfate.
Authors: SAKATA K. , NAGANAWA T. , HASHIMOTO M. , OGAWA H. I. , KATO Y.
Published: May 2016

The preparation of the ligands (VI) and their metal complexes (IX) is shown in the scheme.
ChemInform Abstract: Bis(aryldiazene)‐ and Related Mono(aryldiazenido)ruthenium Complexes: Preparation, Characterization, and Reactivity. Crystal Structure of (Ru(4‐CH3C6H4N=NH)2(P(OEt)3)4)(PF6)2.
Authors: ALBERTIN G. , ANTONIUTTI S. , PELIZZI G. , VITALI F. , BORDIGNON E.
Published: May 2016

The bis‐ and mono(aryldiazene)‐Ru(II) complexes (III) are synthesized by reaction of the dihydride (I) with the aryldiazonium salts (II) depending on the stochiometric ratio and isolated as their tetraphenylborates or hexafluorophosphate.
ChemInform Abstract: In Search of Geminites: Synthesis and Structural Characterization of (Pd((C6H5)2P(CH2)nP(C6H5)2)(SeCN)2) (n = 1, 2, 3) and (Pd((C6H5)2PCH2‐o‐C6H4‐CH2P(C6H5)2)(SeCN)2).
Authors: GRYGON C. A. , FULTZ W. C. , RHEINGOLD A. L. , BURMEISTER J. L.
Published: May 2016

Unlike its thiocyanate analogues, which involve the geminite Pd(Ph2P(CH2)2PPh2)(SCN)(NCS) and the N‐bound complex Pd(Ph2P(CH2)3PPh2)(NCS)2, the selenocyanate title complexes contain only Se‐bound groups as determined by the results of single crystal X‐ray structure analysis for the diphenylphosphinoethane and ‐propane derivatives (n = 2 and 3; space group P21/n, Z=4 and P1, Z=2, respectively).
ChemInform Abstract: Pseudohalogeno Metal Compounds. Part 68. Reaction of Cyano Metal Acids NCAuCNH, (NC)4Pt(CNH)2, (NC)2M(CNH)4 (M: Fe, Ru, Os) and Co(bis(dimethylglyoximato))(CN)CNH with Epoxides: 2‐Hydroxyalkylisocyanide and Oxazolidine‐2‐ylidene Metal Complexes.
Authors: WEIGAND W. , NAGEL U. , BECK W.
Published: May 2016

The gold complex (I) reacts with epoxides to give oxazolidine‐2‐ylidene (III) and 2‐hydroxyalkyl complexes (V), respectively.
ChemInform Abstract: (Bis(dicyclohexylphosphino)ethane)platinum(0). Reactions with Alkyl, (Trimethylsilyl)methyl, Aryl, Benzyl, and Alkynyl Carbon‐Hydrogen Bonds.
Authors: HACKETT M. , WHITESIDES G. M.
Published: May 2016

The cis‐hydridoneopentyl‐Pt(II) complex (I) reductively eliminates neopentane and generates the diphosphine‐Pt(0) intermediate (II) which is not observed directly.
ChemInform Abstract: Synthesis of Petroporphyrins with Six‐ and Seven‐Membered Exocyclic Ring Systems.
Authors: CLEZY P. S. , FOOKES C. J. R. , PRASHAR J. K.
Published: May 2016

Lewis acid‐catalyzed cyclization of the porphyrin acid chlorides (I) yields the cyclic ketones (II).
ChemInform Abstract: Development of Low Chromium Substitute Alloys for High Temperature Applications.
Authors: OH J. M.
Published: May 2016

Alloying elements such as Al, Si, Mo, and Mn are systematically added to a low Cr stainless steel of nominal composition Fe‐8Cr‐16Ni in order to investigate the effect of these elements on the high temp. oxidation kinetics and the oxide morphology.
ChemInform Abstract: Reactions of Compounds with Haloimidoyl Groups
Authors: PETROVA T. D. , PLATONOV V. E.
Published: May 2016

Review: (310 refs.
ChemInform Abstract: Copper(I) Iodide‐Assisted Halogen Exchange at Vinylic Positions. Conversion of Vinyl, Vinylene, and Vinylidene Bromides to the Corresponding Iodo Analogues.
Authors: SUZUKI H. , AIHARA M. , YAMAMOTO H. , TAKAMOTO Y. , OGAWA T.
Published: May 2016

The vinyl bromides (I) and the vinylidene bromides (III) react with potassium iodide in the presence of copper(I) iodide in HMPA to form the corresponding iodo compounds (II) and (IV).
ChemInform Abstract: Synthetic Studies Related to Pentalenolactones. Part 2. Cyclopentanation with 2‐Chloromethylallyl Phenyl Sulfone.
Authors: BREUILLES P. , UGUEN D.
Published: May 2016

The sulfone (I) is lithiated to give the anion salt (III) which reacts with electrophiles, forming coupling products as outlined in the reaction scheme.
ChemInform Abstract: Chemical Studies on the Transformation of Penicillins. Part 1. Synthesis of Cyclic Disulfides and Thiosulfinates Related to Asparagusic Acid.
Authors: MAK C.‐P. , SCHULZ G.
Published: May 2016

Oxidation of the methyl penicillanate (I) yields a mixture of the sulfoxides (II) and the sulfone (III).
ChemInform Abstract: Novel Synthesis of Reduced Mixed‐Valence Molybdenum and Tungsten Complexes by Electrochemical Oxidation of the Seven‐Coordinate Complexes MX(S2)(R2dtc)2 (M: Mo, X: O; M: W, X: O, S; R: Alkyl; dtc: Dithiocarbamate).
Authors: BOND A. M. , BROOMHEAD J. A. , HOLLENKAMP A. F.
Published: May 2016

The electrochemical oxidation and reduction of a series of seven‐coordinate complexes (I) is studied at platinum and mercury electrodes in various organic solvents.
ChemInform Abstract: Bacteriochlorophyll f. ‐ Partial Synthesis and the Behavior of Some Derivatives.
Authors: RISCH N. , KOESTER B. + , SCHORMANN A. , SIEMENS T. , BROCKMANN H.
Published: May 2016

Starting from the demetalated chlorophyll b derivative (I), the bacteriophaeophorbide f methyl ester (III) is prepared.
ChemInform Abstract: Methanolysis of the Stereoisomeric 4β‐Chloro‐3,10‐epoxycaranes.
Authors: ISAEVA Z. G. , BAKALEINIK G. A. , KOVYLYAEVA G. I. , EFREMOV YU. YA. , KORSHUNOV R. L.
Published: May 2016

Acid‐catalyzed methanolysis of the stereoisomeric chloroepoxycaranes (I) and (VI) gives the ring opened chloro compounds (III) ‐ (V) or (VII) and (VIII).
ChemInform Abstract: High TC Superconductive Thin Films on Silicon Substrates
Authors: POULLAIN G. , MERCEY B. , MURRAY H. , RAVEAU B.
Published: May 2016

are prepared using 0.1 μm thick films of metallic nitrides (AlN, GaN, Si3N4) as transition layer (radiofrequency sputtering in Ar/N2 using Al, Ga, Si, or Si3N4 targets).
ChemInform Abstract: Surface Chemical Structures of V2O5‐P2O5 Catalysts
Authors: SATSUMA A. , HATTORI A. , FURUTA A. , MIYAMOTO A. , HATTORI T. , MURAKAMI Y.
Published: May 2016

are investigated by XPS, SIMS, temp.‐programmed desorption of NH3, IR spectra of adsorbed NH3 and pyridine, and the nitric oxide‐ammonia rectangular pulse technique.
ChemInform Abstract: Signs of Interphosphorus Nuclear Spin Coupling Constants in Octahedral Transition‐Metal Complexes Containing Chelated Phosphine Ligands.
Authors: BOOKHAM J. L. , FONTAINE X. L. R. , KENNEDY J. D. , MCFARLANE W.
Published: May 2016

Variations in the magnitudes and the signs of 2J(PMP)cis are observed for the complexes (I)‐(V).
ChemInform Abstract: Electron Density Distributions in the Bonds of Cyclobutadiene Derivatives
Authors: IRNGARTINGER H. , NIXDORF M.
Published: May 2016

(low‐temp.
ChemInform Abstract: Chemical and Electrochemical Synthesis of Quinoneimine N‐Oxides from Indolinone‐3‐arylimino Nitroxide Radicals.
Authors: ALBERTI A. , ANDRUZZI R. , GRECI L. , STIPA P. , MARROSU G. , TRAZZA A. , POLONI M.
Published: May 2016

The indoline‐1‐oxyls (I) are efficiently converted to the isomeric 5and 7‐quinoneimine N‐oxides (II) and (III) either by chemical or electrochemical oxidation.
ChemInform Abstract: Boron‐Nitrogen Compounds. Part 116. Preparation and Crystal Structure of a New Type of Triply Bridged Pyrazabole.
Authors: DAS M. K. , NIEDENZU K. , NOETH H. +
Published: May 2016

The compound (III), the first example of a triply bridged neutral pyrazabole where the third bridge between the two boron atoms of the pyrazabole skeleton is not an OBRO unit, is prepared as shown.
ChemInform Abstract: Ketone‐Like Derivatization Reactions of Metal Carbonyls. Attempts to Measure the Equilibrium Constant for Ketalization of a Carbonyl Ligand in (Re(CO)6)+ by Ethylene Glycol.
Authors: ANDREWS M. A. , MYLES W. L.
Published: May 2016

NMR and IR spectroscopic investigations show that hydrolysis of the cyclic dialkoxycarbene complex (V) to give (VII) and ethylene glycol (VIII) occurs over a period of months.
ChemInform Abstract: Metazidohemerythrin Models Featuring a Bis‐Benzimidazole Tripod Ligand. Structure and Spectroscopy of (μ‐Oxo)bis(μ‐benzoato)bis(bis(2‐benzimidazolylmethyl)amine)diiron(III).
Authors: GOMEZ‐ROMERO P. , CASAN‐PASTOR N. , BEN‐HUSSEIN A. , JAMESON G. B.
Published: May 2016

(Ia) is prepared by addition of Fe(ClO4)3 to a solution of the tripod ligand and benzoic acid in EtOH.
ChemInform Abstract: A Matrix‐Isolation Study of Gaseous Intermediates in the Direct Formation of Poly(Sulfur Nitride) from Tetrasulfur Tetranitride Using a Silver Selenide Catalyst: Evidence for the Involvement of HNSO.
Authors: ALMOND M. J. , DOWNS A. J. , JEFFERY T. L.
Published: May 2016

Matrix‐isolation IR studies reveal that HNSO is formed in addition to S2N2 in the vapor phase when vapor of S4N4 is passed over silver selenide at 160 °C. The thiazyl monomer, NS., is not observed.
ChemInform Abstract: Effects of Replacing Sodium by Nickel Ions in Y Zeolite: Evidence from Xenon‐129 NMR Spectroscopy.
Authors: BANSAL N. , DYBOWSKI C.
Published: May 2016

Ni‐exchanged Na‐Y zeolites of different levels of exchange are characterized and the effects of outgassing temp. on various factors contributing to the xenon chemical shift are also investigated.
ChemInform Abstract: Halogen Adsorption on n‐MoSe2 (0001) van der Waals Faces: Simulation of Electrochemical Junctions in UHV.
Authors: JAEGERMANN W.
Published: May 2016

The adsorption of Cl2, Br2, and I2 on clean (freshly cleaved in ultra‐high‐vacuum) n‐MoSe2 surfaces is studied by UPS and XPS.
ChemInform Abstract: Study of Thermal Aging of Pt/Al2O3 Using Temperature‐Programmed Desorption Spectroscopy.
Authors: BECK D. D. , CARR C. J.
Published: May 2016

1% Pt/Al2O3 catalysts are thermally aged in nitrogen containing either 5% O2 or 5% H2 for several hours.
ChemInform Abstract: Liquid‐Crystalline Solvents as Mechanistic Probes. Part 29. Chiral Discotic Columnar Mesophases from the α and β Anomers of Penta‐O‐n‐alkanoylglucopyranoses (I).
Authors: MORRIS N. L. , ZIMMERMANN R. G. , JAMESON G. B. , DALZIEL A. W. , REUSS P. M. , WEISS R. G.
Published: May 2016

The detailed phase‐behavior of the α and β anomers of (I) is investigated by DSC, X‐ray diffraction, optical microscopy, and CD.
ChemInform Abstract: Intramolecular Cycloaddition Reactions of N‐Acyl Imines. A Stereoselective Approach to the N‐Terminal Amino Acid Component of Nikkomycin B.
Authors: MELNICK M. J. , WEINREB S. M.
Published: May 2016

The allyl α‐acetoxy‐α‐benzoylaminocarboxylates (IV), readily obtained from (I), are cyclized upon heating to produce the furooxazine derivatives (V).
ChemInform Abstract: Synthesis and Antileukemic Activity of Spiro(indoline‐3,2′‐thiazolidine)‐2,4′‐diones.
Authors: RAJOPADHYE M. , POPP F. D.
Published: May 2016

The isatinmonoimines (III), prepared from the isatins (I) and the anilines (II), undergo cyclocondensation with the mercapto acids (IV) or (IX), yielding the spiro‐fused thiazolidinones (V) or the thiazinone (X).
ChemInform Abstract: Photochemical, Photophysical, and Theoretical Studies on Cyclobutanethiones: α‐Cleavage Reactions.
Authors: RAO B. N. , CHANDRASEKHAR J. , RAMAMURTHY V.
Published: May 2016

Irradiation of the alkylidenecyclobutanethiones (I) in benzene results in isomerization, yielding the rearranged products (II), whereas in methanol (III), the cyclic O,S‐acetals (IV) and (V) are additionally formed.
ChemInform Abstract: The Cyclohepta(def)carbazolium Ion.
Authors: FREIERMUTH B. , WIRZ J.
Published: May 2016

According to the scheme the title ion (IV) is obtained.
ChemInform Abstract: N‐Acyl‐N′‐methyl‐N‐(1,3,5‐trimethylbicyclo(2.2.1)hept‐2‐yl)benzamidines with Hypotensive Activity.
Authors: BONDAVALLI F. , BRUNO O. , MARIANI E. , SCHENONE P. , LISA M. , SUSANNA V. , MAIONE S. , MARMO E.
Published: May 2016

The benzamidine derivatives (IV) mentioned in the title are prepared by LiAlH4 reduction of the N'‐(phenoxycarbonyl)benzamidine (I), followed by acylation of the resulting amidine (II).
ChemInform Abstract: 2‐Ethynylbenzenealkanamines. A New Class of Calcium Entry Blockers.
Authors: CARSON J. R. , ALMOND H. R. , BRANNAN M. D. , CARMOSIN R. J. , FLAIM S. F. , GILL A. , GLEASON M. M. , KEELY S. L. , LUDOVICI D. W. , PITIS P. M. , REBARCHAK M. C. , VILLANI F. J.
Published: May 2016

Starting with the (methoxyphenyl)alkanones (I), the 2‐ethynylbenzenealkanamines (VI) and (VIII) are prepared: iodination of (I) gives (II) which is coupled with phenylacetylen (III) to form the substitution products (IV).
ChemInform Abstract: Synthesis and Chemical Properties of N,N′‐Dihydroxy(2.2)paracyclophane‐4,5,12,13‐tetracarboxylic Acid Bisimide.
Authors: ELTAMANY E. H. , MOURAD A.‐F. E.
Published: May 2016

The title bisimide (III) reacts with the aromatic amino compounds (IV) to give the products (V).
ChemInform Abstract: Facile Synthesis of Vinylic and Ethynylic Carbazole Derivatives and of the Corresponding Bis‐α‐Diketones.
Authors: KOVALEVA L. F. , REUTOVA O. I. , SARYCHEVA T. A. , SHELUDYAKOV O. A. , NOVIKOV A. N. , FILIMONOV V. D.
Published: May 2016

The reaction between the 3,6‐diiodocarbazoles (I) and phenylacetylene (II) affords the known 3,6‐bis‐phenylethynyl derivatives (III).
ChemInform Abstract: On Triazoles. Part 12. The Carbamoylation and Thiocarbamoylation of 5‐Amino‐1,2,4‐triazoles.
Authors: REITER J. , PONGO L. , DVORTSAK P.
Published: May 2016

The 5‐aminotriazoles (I) react with the isocyanates (IIa) or the isothiocyanates (IIb) to give mainly the 1‐substituted derivatives (III).
ChemInform Abstract: Synthesis and Biological Properties of Substituted 2H‐1‐Benzopyran‐2‐ones and 2H,10H‐Benzo(1,2‐b:3,4‐b′)dipyran‐2,10‐diones.
Authors: SANGWAN N. K. , VERMA B. S. , DHINDSA K. S.
Published: May 2016

The products (III)‐(V), (IX) and (X) are screened for their antifungal activity.
ChemInform Abstract: Synthesis and Structure of 6‐ and 7‐(2‐Arylvinyl)pteridines.
Authors: ABDEL‐HADY S. A. L. , BADAWY M. A. , KADRY A. M. , MOSSELHI M. A. N.
Published: May 2016

The hydrochloride (I) of 5,6‐diaminouracil is coupled with the benzylidenepyruvic acids (V) in an aqueous solution to give the enamines (VI) which undergo base‐induced ring closure, forming the pteridines (VII).
ChemInform Abstract: Synthesis of Hydrazones Derived from 2‐Substituted 10‐Carboxyphenothiazine Hydrazides.
Authors: TSITSA P. , PSARREA‐SANDRIS A. , SANDRIS C.
Published: May 2016

The acid chlorides (III), derived from the phenothiazines (I), react with the hydrazines (IV) and (VI), yielding the hydrazides (V) and (VII).
ChemInform Abstract: Sulfonylcarbamimidic Azides from Sulfonyl Chlorides and 5‐Aminotetrazole.
Authors: PEET N. P. , SUNDER S. , BARBUCH R. J. , HUBER E. W. , BARGAR E. M.
Published: May 2016

The sulfonyl chlorides (I) and (VI) react with 5‐aminotetrazole (II) to form the sulfonylcarbamimidic azides (III) or (VII).
ChemInform Abstract: Synthesis and Properties of Purinophanes: Relationship Between the Magnitude of Hypochromism and Stacking Geometry of Purine Rings.
Authors: SEYAMA F. , AKAHORI K. , SAKATA Y. , MISUMI S. , AIDA M. , NAGATA C.
Published: May 2016

The twelve purinophanes (I)‐(IV) are prepared by either stepwise introduction of the linking chains or by quasi‐dimerization of disubstituted purine derivatives.
ChemInform Abstract: Primary Aminomethylation of Organometallic Compounds via N,N‐Bis(trimethylsilyl)methylthiomethylamine.
Authors: FIOCCA L. , FIORENZA M. , REGINATO G. , RICCI A. , DEMBECH P. , SECONI G.
Published: May 2016

Sodium hexamethyldisilazide (I) is coupled with chloromethyl methyl sulfide (II) to yield the bis(silyl)methylthiomethylamine (III).
ChemInform Abstract: Aminomethylation in the Series of Phosphorus‐Containing Heterocycles. Part 3. Aminomethylation of trans‐2,3‐Diphenyl‐2‐thioxo‐2‐phosphabicyclo(4.4.0)decan‐5‐one.
Authors: BOSYAKOV YU. G. , REVENKO G. P. , LOGUNOV A. P.
Published: May 2016

The aminomethylation of the title compound (I) takes place regio‐ and stereospecifically to yield the β‐amino ketones (III) with equatorial orientation of the aminomethyl substituent at C‐4 of the heterocyclic ring.
ChemInform Abstract: Kinetics, Mechanisms, and Catalysis of Oxygen Atom Transfer Reactions of S‐Oxide and Pyridine N‐Oxide Substrates with Molybdenum(IV,VI) Complexes: Relevance to Molybdoenzymes.
Authors: CARADONNA J. P. , REDDY P. R. , HOLM R. H.
Published: May 2016

Coupling of the reactions shown in the scheme affords the catalytic reactions of (II) with (VI) or (VIII) to give (V) and (VII) or (IX), respectively.
ChemInform Abstract: Diastereoselective Reactions of Chiral‐at‐Iron Carbene Complexes C5H5(CO)(PR3)Fe=CHR+. Synclinal Isomers Are More Reactive Than Anticlinal Isomers.
Authors: BROOKHART M. , LIU Y. , BUCK R. C.
Published: May 2016

The title carbene complex cations (II) are prepared according to the scheme.
ChemInform Abstract: A Nickel(0) Dimer/Monomer System with Facile and Reversible Carbon Monoxide Uptake: Ni2(CO)x(dppm)2 (x = 3, 4) and Ni(CO)3(η1‐dppm).
Authors: OSBORN J. A. , STANLEY G. G. , BIRD P. H.
Published: May 2016

Refluxing a THF solution of Ni(CO)4 (I) and the tripod ligand (II) (ratio 3.8:3.6) results in the formation of the diphosphine‐bridged Ni(0) dimer (III).
ChemInform Abstract: Rhodium‐Carbon Monoxide Surface Chemistry: The Involvement of Surface Hydroxyl Groups on Al2O3 and SiO2 Supports.
Authors: BASU P. , PANAYOTOV D. , YATES J. T. JUN.
Published: May 2016

For the first time, direct IR spectroscopic evidence is obtained indicating that specific OH groups on Al2O3 and SiO2 are consumed as CO interacts with supported Rh crystallites to produce atomically dispersed Rh(I)(CO)2.
ChemInform Abstract: Synthesis, Complexing Properties and Applications in Asymmetric Synthesis of Bis‐Lacto‐18‐crown‐6 Compounds.
Authors: ALONSO‐LOPEZ M. , JIMENEZ‐BARBERO J. , MARTIN‐LOMAS M. , PENADES S.
Published: May 2016

The binding properties of the novel or the known compounds (II) and (IV) or (V)‐(VII) are determined by extraction of lithium, sodium, potassium and methylammonium picrates.
ChemInform Abstract: A Direct Synthesis of C‐Glycosyl Compounds.
Authors: KRAUS G. A. , MOLINA M. T.
Published: May 2016

Coupling of the tetra(benzyloxy)lactone (I) with the organometallic compounds (II) and subsequent reduction with triethylsilane/boron trifluoride ‐ etherate produce the C‐glycosylated derivatives (III).
ChemInform Abstract: Carbene Ligands as Anthracyclinone Synthons. Part 6. Metal Carbene Chelates as Key Reagents in Syntheses of the Daunomycinone Series: Regiospecific Annulation of Arylcarbene Ligands as a Strategy Toward the Synthesis of Rings B and C.
Authors: DOETZ K. H. + , POPALL M.
Published: May 2016

Reaction of the chromium carbene chelates (I) with the hexynoate (II) yields the anellation products (III), which are converted by convertional steps to the tetracyclic systems (IV); the latter serve as precursors to daunomycinone C (Va) and its demethoxy analogue (Vb).
ChemInform Abstract: Studies of the Rate of the Formation of Talc Under Hydrothermal Conditions at 400‐460 °C.
Authors: MURAISHI H.
Published: May 2016

The reaction of brucite (Mg(OH)2) with soluble SiO2 under hydrothermal conditions to yield talc (Mg3Si4O10(OH)2) is found to occur via serpentine (Mg3Si2O5(OH)4) as an intermediate phase below 415 °C, whereas above 430 °C an additional intermediate, forsterite (Mg2SiO4) is formed.
ChemInform Abstract: Interaction Between Xenon Di‐ and Tetrafluoride with Alkali Metal Fluorides
Authors: SPITZIN V. I. , KISELEV YU. M. , FADEEVA N. E. , POPOV A. I. , TCHUMAEVSKY N. A.
Published: May 2016

, MF (M: Na, K, Rb, Cs), yield M2XeF6, which contain octahedral XeF26 anions.
ChemInform Abstract: Reactions of Bromotrifluoromethane with Acid Derivatives in the Presence of Zinc.
Authors: FRANCESE C. , TORDEUX M. , WAKSELMAN C.
Published: May 2016

Ethyl trifluoroacetate (I) reacts with trifluorobromomethane (II) in the presence of zinc under atmospheric pressure to give hexafluoroacetone (III).
ChemInform Abstract: Diastereofacial Control in the Reaction of Chiral α‐Amino Ketones with Several Organometallics.
Authors: FUJISAWA T. , FUNABORA M. , UKAJI Y. , SATO T.
Published: May 2016

The chiral amino ketones (I) are reductively alkylated with organometallic agents such as (II) to give the optically active alcohols (III).
ChemInform Abstract: Photochemical Bromination of Anilides by Benzene Hexabromide.
Authors: ALY M. M. , AWAD I. M. A. , FAHMY A. M.
Published: May 2016

The reaction rates of the photochemical p‐bromination of the anilides (I) with benzene hexabromide, yielding the N‐acyl‐p‐bromoanilines (II), are determined.
ChemInform Abstract: Reactions of p‐Benzoquinone Diimine Derivatives with N,N‐Dimethylanilines.
Authors: MIYAGI Y. , MARUYAMA K. , KUROKAWA M. , YOSHII A.
Published: May 2016

The benzoquinonimines (I) react with the dimethylanilines (II) under thermal or photochemical conditions to form the adducts (III), together with minor amounts of the reduction products (IV).
ChemInform Abstract: 3‐Hydroxypyrroles and 1H‐Pyrrol‐3(2H)‐ones. Part 2. Scope and Limitations of the Synthesis of Pyrrol‐3‐ones by Pyrolysis of Aminomethylene Meldrum′s Acid Derivatives.
Authors: MCNAB H. , MONAHAN L. C.
Published: May 2016

The title reaction of the Meldrum's acid derivatives (I), (III) and (VI) leads to mono‐, di‐ and trisubstituted pyrrolones via a hydrogen‐transfer‐cyclization sequence.
ChemInform Abstract: Substituted 5‐Imino‐3,3‐pentamethylene‐1,2,4‐thiadiazolidines by Amination of Thiourea Derivatives.
Authors: ANDREAE S. , SCHMITZ E.
Published: May 2016

The S‐amination of N‐acyl thioureas with the oxaziridine (I) is found to be successful only in the case of the compounds (II) and (IV).
ChemInform Abstract: Reduction of Quinolinecarboxylic Acids with Raney Nickel.
Authors: GRACHEVA I. N. , TOCHILKIN A. I.
Published: May 2016

Reduction of quinoline‐2‐carboxylic acid (I) with Raney nickel gives 1,2,3,4‐tetrahydroquinoline‐2‐carboxylic acid (II) which is converted to the ethyl ester (IV).
ChemInform Abstract: Reaction of the Lithium Enolate of Acetaldehyde, Li(OCH=CH2), with Cyclothiaphosphazenes.
Authors: DHATHATHREYAN K. S. , JEKEL A. P. , VAN DE GRAMPEL J. C.
Published: May 2016

Reactions of the title enolate with the cyclothiaphosphazenes (Ia) and (IIa) lead to a complete series of the vinyloxy derivatives (Ib)‐(Ig), and (IIb) and (IIc).
ChemInform Abstract: Reactions of Some Main Group Metals with Diphenyl Disulfide and Diphenyl Diselenide.
Authors: KUMAR R. , MABROUK H. E. , TUCK D. G.
Published: May 2016

The reactions of In with (I) give the compounds (III), whereas under similar conditions Sn or Tl react to form (VII) or (VIII).
ChemInform Abstract: Binucleating N6 24‐ and 26‐Membered Macrocyclic Ligands. Part 2. Transition‐Metal Homo‐ and Hetero‐Binuclear Complexes: X‐Ray Crystallographic Structure Determination of a Lead‐Manganese Heterobinuclear Complex.
Authors: NELSON J. , MURPHY B. P. , DREW M. G. B. , YATES P. C. , NELSON S. M.
Published: May 2016

Preformed Pb complexes (I) or (VIII) (by template condensation reactions) are transmetallated to give homo‐ or heterobinuclear complexes.
ChemInform Abstract: Synthetic Studies of Cyclosporin Analogues.
Authors: GALPIN I. J. , MOHAMMED A. K. A. , PATEL A.
Published: May 2016

The syntheses of the eleven analogues (Ib)‐(If) of cyclosporin A (Ia) are accomplished by stepwise assembly of the respective undecapeptide fragments followed by cyclization with a variety of reagents.
ChemInform Abstract: A Potentiometric and Spectroscopic Study of the Interaction of Angiotensin II and Some of Its Peptide Fragments with Copper(II).
Authors: DECOCK‐LE REVEREND B. , LIMAN F. , LIVERA C. , PETTIT L. D. , PYBURN S. , KOZLOWSKI H.
Published: May 2016

In the pH range 6.5‐8 angiotensin II, the octapeptide (I), shows Cu(II) coordination to the imidazole nitrogen of the histidyl side‐chain and the neighboring peptide nitrogens.
ChemInform Abstract: Synthesis via Vinyl Sulfones. Part 27. Total Synthesis of dl‐Cephalotaxine. The First Example of an Intramolecular 4 + 2 Cycloaddition Where the Dinophile Has Been Delivered from the Face Opposite to the Tethering Moiety.
Authors: BURKHOLDER T. P. , FUCHS P. L.
Published: May 2016

Reaction of the aryllithium reagent derived from (I) with the vinyl sulfone (II) produces an α‐sulfonyl anion which is further functionalized by addition of the allyl bromide (III) to give ‐ after sulfone elimination and hydrolysis ‐ the ester (IV).
ChemInform Abstract: Carbynes Generated from Metal Carbonyl and Isocyanide Complexes: Intermediates in the Reductive Coupling of CO and CNR Ligands.
Authors: VRTIS R. N. , RAO CH. P. , WARNER S. , LIPPARD S. J.
Published: May 2016

Trialkylsiloxycarbyne complexes such as (III), which are obtained according to the scheme, are key intermediates in the reductive coupling of coordinated CO ligands giving alkyne complexes.
ChemInform Abstract: A New Azacyanocarbon, C4N4: Tricyanomethanimine.
Authors: HALL H. K. JUN. , RAMEZANIAN M. , SAEVA F. D.
Published: May 2016

2,2‐Dichloroethylene‐1,1‐dicarbonitrile (I) reacts with sodium azide (II) to give the diazide (III) which is thermolyzed to form tricyanomethanimine (IV).
ChemInform Abstract: Direct Synthesis of 3‐Alkylisoquinolines with Non‐Standard Orientation of Methoxy Groups.
Authors: BROVCHENKO V. G. , PAIDAK B. B. , KUZNETSOV E. V.
Published: May 2016

Reaction of the o‐lithiated veratrylacetone acetal (III) with the benzonitriles (IV) and subsequent acidic work‐up give the 7,8‐dimethoxyisoquinolines (V).
ChemInform Abstract: Selenonium Ylides of Cyclopentadiene, Indole, and Pyrrole.
Authors: HARTKE K. , WENDEBOURG H. H.
Published: May 2016

The trimethylsilylcyclopentadiene (I), indole (VI), and the pyrroles (XI) are coupled with the selenoxides (II), forming the selenonium ylide (III), or the perchlorates (V), (VII), (XII), an (XIII).
ChemInform Abstract: Tridentate Coordination by a Tripodal Ligand System: Synthesis and Crystal and Molecular Structure of (Diisopropyl(1,2‐bis(diethylcarbamoyl)ethyl)phosphonate)erbium(III) Nitrate.
Authors: MCCABE D. J. , DUESLER E. N. , PAINE R. T.
Published: May 2016

The title complex (I) is prepared by 1:1 molar reaction of Er(NO3)3·5 H2O with the diisopropyl(1,2‐bis(carbamoyl)ethyl)phosphonate in ethanol in the presence of 1 equiv. triethyl phosphate.
ChemInform Abstract: (η3‐Phosphaallyl)iron Complexes: Synthesis and Preliminary Chemical Study.
Authors: MERCIER F. , HUGEL‐LE GOFF C. , MATHEY F.
Published: May 2016

The η3‐phosphaallyl‐Fe complexes (VIIa) and (VIIIa) containing a W(CO)5 unit in syn‐ and anti‐position to the α‐H atom are synthesized according to the scheme.
ChemInform Abstract: Synthesis of Drimane Sesquiterpenes. An Intramolecular Diels‐Alder Approach.
Authors: HE J.‐F. , WU Y.‐L.
Published: May 2016

The synthesis of the lactone (±)‐(VII) starts with β‐ionone (I) and includes the intramolecular Diels‐Alder reaction of the diester (V).
ChemInform Abstract: A (3 + 2) Nitrile Oxide Cycloaddition Approach to Retinoids.
Authors: BARALDI P. G. , BARCO A. , BENETTI S. , GUARNERI M. , MANFREDINI S. , POLLINI G. P. , SIMONI D.
Published: May 2016

1,3‐Dipolar cycloaddition of the nitrile oxide (I) with the dienyl acetate (II) yields the isoxazoline (III) which is cleaved upon treatment with molybdenum hexacarbonyl, forming the α‐hydroxy ketone (IV).
ChemInform Abstract: Investigation of the Reaction of 1‐Pyrrolines with Ketenes. Carbapenams, N‐Acyl‐2‐pyrrolines, and ω‐Acylamino Ketones.
Authors: BURGEMEISTER T. , DANNHARDT G. , MACH‐BINDL M. , NOETH H.
Published: May 2016

1‐Pyrrolines, e.g. (I), (VII), and (XIII), are treated with acyl chlorides such as (II), (IV), (IX), or (XI) in the presence of triethylamine.
ChemInform Abstract: Polymorphic Mixes of Zirconia from a Borate Glass Melt.
Authors: DE VILLIERS D. R. , KINGON A. I. , RES M. A.
Published: May 2016

Yttria‐stabilized ZrO2 crystals are prepared by devitrification of a sodium borate glass containing zirconia and yttria in varying ratios (85 wt.% B2O3, 5 wt.% Na2O, 10 wt.% (ZrO2 + Y2O3)).
ChemInform Abstract: Search for Lawrencium as a p‐Element Using Gas Chromatography Techniques.
Authors: JOST D. T. , GAEGGELER H. W. + , VOGEL CH. , SCHAEDEL M. + , JAEGER E. + , EICHLER B. , GREGORICH K. E. , HOFFMAN D. C.
Published: May 2016

Multidimensional relativistic Dirac‐Fock calculations predict a (Rn)5f147s27p1/2 (Lr(p)) ground state configuration for Lr rather than the (Rn)5f146d7s2 configuration traditionally expected by analogy with Lu.
ChemInform Abstract: 1H NMR Studies of the System Ta1‐xTixHy, 0 ≤ x ≤ 0.3, 0 < y ≤ 0.9. Magnetic Susceptibility χM and Knight Shift KH.
Authors: RICHTER K.‐H. , WEISS A.
Published: May 2016

The aim of high resolution 1H NMR measurements of the ternary title system is to study the electronic structure of the b.c.c. system and to compare the properties of this system with those of the Nb‐Ti‐H system.
ChemInform Abstract: Preparation and Catalytic Activity of a New Solid Acid Catalyst.
Authors: DRAGO R. S. , GETTY E. E.
Published: May 2016

Catalysts are prepared by reacting inorganic oxides (SiO2, Al2O3, high‐Si zeolite, B2O3, TiO2, MgO) with Al2Cl6 in refluxing CCl4 and their catalytic activity is investigated using cracking of n‐hexadecane as probe reaction.
ChemInform Abstract: Analysis of Substituted Ferrocenes by Infrared Spectroscopy.
Authors: PHILLIPS L. , LACEY A. R. , COOPER M. K.
Published: May 2016

The IR spectra of (I) are investigated to determine and analyze the appropriate ring‐metal stretching force constants.
ChemInform Abstract: Organotin Biocides. Part 11. Triphenyltin Benzoates: Electronic versus Steric Control of Structure.
Authors: MOLLOY K. C. , BLUNDEN S. J. , HILL R.
Published: May 2016

The structures of twenty‐four triphenyltin derivatives of substituted benzoic acids are assigned on the basis of IR, 119Sn NMR, and Moessbauer spectroscopic data.
ChemInform Abstract: Free‐Radical Reduction Reactions of Chiral Dihydronicotinamides. Enantioselective Hydrogen Atom Transfer and Electron‐Transfer Processes During the Reduction of Ketones.
Authors: TANNER D. D. , KHARRAT A.
Published: May 2016

If the reduction of (I) with DHNA to alcohol (II) (yield 43%) is carried out in the presence of m‐dinitrobenzene (inhibitor), the yield is diminished (13%), whereas with additive AIBN (initiator) the yield is dramatically enhanced (see scheme); however, the e.e.'s are not at all influenced by either additive.
ChemInform Abstract: Nucleophilic Substitution of Hexachlorocyclopentadiene by the Propynolate Anion.
Authors: ISMAILOV S. A.
Published: May 2016

The reaction between hexachlorocyclopentadiene (I) and propenolates does not afford the desired 5‐monosubstituted or 5,5‐disubstituted products, because they undergo spontaneous intramolecular (4 +2) cycloaddition.
ChemInform Abstract: One‐Pot Syntheses of Methyl p‐ and o‐Hydroxydithiobenzoates from Phenol Ethers.
Authors: DIETER R. K. , LUGADE A. G.
Published: May 2016

The p‐hydroxydithiobenzoates (IV) are prepared in a one‐pot process from the anisoles (I) by treatment with methyl iodide (III) and anhydrous aluminum chloride in carbon disulfide (II).
ChemInform Abstract: Five‐Membered 2,3‐Dioxoheterocycles. Part7. Synthesis of 4‐Arylsulfonyl‐1‐aryl‐5‐phenyltetrahydropyrrole‐2,3‐diones and Their Reaction with Amino Compounds and Hydrazine.
Authors: ANDREICHIKOV YU. S. , GEIN V. L. , ANIKINA I. N.
Published: May 2016

The cyclocondensation between the arylsulfonylpyruvic esters (I) and the Schiff bases derived in situ from the aromatic amine (II) and benzaldehyde (III) affords the title compounds, present as the enolized forms (IV).
ChemInform Abstract: C‐Alkylation of the 2‐Nitropropane Anion by 1‐Methyl‐2‐chloromethyl‐4‐nitroimidazole Using Phase‐Transfer Conditions.
Authors: CROZET M. P. , VANELLE P. , JENTZER O. , MALDONADO J.
Published: May 2016

The imidazole (III) is prepared for comparison of the biological activities of 4‐ and 5‐nitroimidazoles.
ChemInform Abstract: Synthesis of Formazans of Substituted Oxadiazole‐2(3H)‐thiones.
Authors: KALSI R. , PANDE K. , BARTHWAL J. P.
Published: May 2016

Sixteen title compounds of type (V) are synthesized from the corresponding oxadiazoles (yield: 30‐70%).
ChemInform Abstract: Nucleophilic Substitution at C‐4 in 4‐Functionalized Hexahydropyrimidine‐2‐thiones. Synthesis of 4‐Alkylthiohexahydropyrimidine‐2‐thiones.
Authors: IGNATOVA L. A. , SHUTALEV A. D. , PAGAEV M. T. , UNKOVSKII B. V.
Published: May 2016

Reaction of the hydroxyhexahydropyrimidinethiones (I) with the mercaptans (II) gives the alkylmercapto derivatives (III) with retention of the configuration.
ChemInform Abstract: Macroheterocycles. Part 39. A Convenient Synthesis of Polyaza Oxa Cryptands.
Authors: LUKYANENKO N. G. , BASOK S. S. , FILONOVA L. K.
Published: May 2016

Alkylation of the N,N'‐bis(2‐tosylaminoethyl) diaza crown ethers (III) with the dibromides (IV) under phase‐transfer conditions yields the cryptands (V).
ChemInform Abstract: Reaction of Dialkylaminodialkylphosphines with Trimethyliodosilane.
Authors: GOMELYA N. D. , FESHCHENKO N. G.
Published: May 2016

Reaction of the dialkylphosphinous amides (I) with trimethyliodosilane (II) gives the phosphinylphosphonium iodides (III) which are also prepared from the iodophosphines (IV) and the aminosilane (V).
ChemInform Abstract: Halogenation of Phosphorus Ylides with Carbon Tetrahalides.
Authors: KOLODYAZHNYI O. I. , GOLOKHOV D. B.
Published: May 2016

The phosphorus ylides (I) or (III) react with carbon tetrachloride or tetrabromide to give the halogenated ylides (II) or (IV).
ChemInform Abstract: Reaction of (FeCo(CO)7(μ‐CH=CRH)) (R = H or Ph) with Dimethylphenylphosphine. Synthesis and Structure of (FeCo(CO)4(μ‐CO)‐(PMe2Ph)2(μ‐CH=CH2)), an Electronically Unbalanced Iron‐Cobalt Complex.
Authors: MOLDES I. , ROS J. , YANEZ R. , MATHIEU R. , SOLANS X. , FONT‐BARDIA M.
Published: May 2016

The title reaction leads to (III) or (IV) depending on the ratio of reactants.
ChemInform Abstract: Oxidative Chemistry of Nickel Hydroporphyrins.
Authors: STOLZENBERG A. M. , STERSHIC M. T.
Published: May 2016

The chemical and electrochemical oxidation of the Ni(II) complexes of octaethylporphyrin, octaethylchlorin and its 2‐methyl derivative, and octaethylisobacteriochlorin (ttt/tct mixture) and its 2,7‐dimethyl derivative (syn and anti mixture) are investigated in MeCN, CH2Cl2 and DMF.
ChemInform Abstract: Mechanistic Studies of the Palladium‐Catalyzed Reaction of Methanol with Bromobenzene and CO to Produce Methyl Benzoate. Part 1. Stoichiometric Study.
Authors: MOSER W. R. , WANG A. W. , KILDAHL N. K.
Published: May 2016

The complexes (I) and (II) are shown to be key intermediates in the title reaction at 90 °C and 40 psi.
ChemInform Abstract: A Facile Conversion of Aminoalkanephosphonic Acids into Their Diethyl Esters. The Use of Unblocked Aminoalkanephosphonic Acids in Phosphono Peptide Synthesis.
Authors: KAFARSKI P. , LEJCZAK B.
Published: May 2016

The aminophosphonic acids (I) are converted to the ammonium oxalates (V) and then coupled with the mixed anhydrides, derived from the aminocarboxylic acids (VI), producing the peptides (VII).
ChemInform Abstract: Total Synthesis and Properties of Prostaglandins. Part 10. Synthesis of γ‐Keto Esters and Their Reaction with Some Aluminum and Boron Reagents.
Authors: KALNIN'SH A. P. , DIKOVSKAYA K. I. , KUCHIN A. V. , KUDRYASHOVA V. V. , KORITS V. R. , FREIMANIS YA. F. , GAVARS M. P. , SAKHARTOVA O. V. , TUROVSKII I. V.
Published: May 2016

The influence of the reducing agent on the formation of the lactones or lactols as well as the mechanisms of formation of these compounds are discussed in detail.