Now showing items 1-9 of 9
Metal complex-catalyzed redistribution reactions of organosilanes : IV. Redistribution reactions of methylsiloxanes catalyzed by transition metal complexes
(Elsevier, 1982-10-19)
Redistribution reactions of a variety of hydrogen-substituted siloxanes are catalyzed by various transition metal complexes of iridium and rhodium. The products arise from breaking and remaking of Si---C, Si---H, and Si---O ...
A novel method for the synthesis of 6,7-unsubstituted pyrrolo[3,2-]pyrimidines
(Elsevier, 1982)
The synthesis of 2,4-dimethoxypyrrolo[3,2-]pyrimidine () is described. This facile, 3-step synthesis involves the bromination of 2,4-dimethoxy-6-methyl-5-nitropyrimidine (), and the subsequent conversion of compound into ...
Preparation of halomethaneboronates
(Elsevier, 1982-08-10)
A facile preparation of iodomethaneboronic esters is described. The key step utilizes a tin hydride reduction of dichloromethaneboronic esters.
An electrochemical ketal synthesis from 2-carboxy-2-allyl-tetrahydropyrans
(Elsevier, 1982)
2-Substituted tetrahydropyranyl-2-carboxylates have been converted to mixed ketals by electrochemical oxidative decarboxylation.
The stereochemistry of the oxidative dehydrogenation of allyl alcohol-3-d1 over a silver catalyst
(Elsevier, 1982-06)
The stereochemistry of the oxidative dehydrogenation of (Z)-allyl alcohol-3-d1 to acrolein over a silver catalyst has been studied using microwave spectroscopy for analyses. With oxygen present randomization was less than ...
Magnesium oxide as a catalyst support: The influence of chlorine
(Elsevier, 1982-07-01)
The properties of MgO when used as a support material for Ru-Au catalysts have been investigated by thermal analysis, chemical analysis, surface area measurements and X-ray diffraction. During impregnation the support ...
Vaporization and thermodynamic properties of samarium dicarbide and sub-stoichiometric disamarium tricarbide
(Elsevier, 1982-11)
The vaporization reactions of SmC2(s) and Pu2C3-type SmCy(s, 1.36 y SmC2(s) = 2C(s)+Sm(g){2/(2-y)}SmCy(s) = {y/(2-y)}SmC2(s)+Sm(g)The complex reaction for SmCy occurs because the composition of the carbon-rich boundary of ...
Carbon-13 and silicon-29 NMR spectra of some [tris(trimethylsilyl)methyl]-substituted silanes and related compounds
(Elsevier, 1982-08-24)
Fourier Transform 13C and 29Si NMR spectra are reported for series of [tris-(trimethylsilyl)methyl] dimethylsilanes, [tris(trimethylsilyl)methyl] diphenylsilanes, and for related compounds. Analysis of chemical shift values ...
Reduction of ketones by sodium borohydride in the absence of protic solvents. Inter versus intramolecular mechanism
(Elsevier, 1982)
Acetone, acetophenone and benzophenone react with sodium borohydride in the absence of protic solvent to give the corresponding tetraalkoxyborates. In view of theseresults, the possibility of the 4-centre mechanism for ...