Reaction of organohydrosilares with alcohols in presence of tetramethylammonium fluoride

Autor: L. M. Sarafanova, K. A. Andrianov, V. M. Kopylov, L. M. Tartakovskaya
Rok vydání: 1975
Předmět:
Zdroj: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 24:1338-1339
ISSN: 1573-9171
0568-5230
DOI: 10.1007/bf00922081
Popis: 1. The reactions of the dibenzylmethyl-, benzyldimethyl-, diallylmethyl-, allyldimethyl-, and diphenylmethylsilanes with the methyl and propargyl alcohols were studied in the presence of tetramethylammonium fluoride. It was found that, together with dehydrocondensation, cleavage of the Si-benzyl and Si-allyl bonds occurs; the Si-phenyl bond is not cleaved under analogous conditions. 2. In their activity the groups, cleaved by methanol in the presence of tetramethylammonium fluoride, can be arranged in the following order: C6H5CH2 > H > CH2=CHCH2. 3. The direction of the reaction is substantially affected by the nature of both the alcohol and the solvent: the fraction of the dehydrocondensation reaction increases with increase in the acidity of the alcohol, while the fraction of cleavage of the Si-C bond is greater in the presence of DMF than in the absence of a solvent.
Databáze: OpenAIRE
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