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SYNTHESIS OF (ACYLOXYBUTYL)DIMETHYLCHLOROSILANES, BIS(ACYLOXYBUTYL)TETRAMETHYLDISILOXANES, AND THEIR DERIVATIVES
Volkova, L. M.,Makarova, N. N.,Lyakhovetskii, Yu. I.
, p. 1515 - 1518 (2007/10/02)
New bis(acyloxybutyl)tetramethyldisiloxanes and (acyloxybutyl)dimethylchlorosilanes were prepared by reactions of 2,2-dimethyl-1-oxa-2-silacyclohexane with valeric, heptanoic, thioacetic, p-nitrobenzoic, and p-bromobenzoic acids and the corresponding acyl chlorides.Bis(p-aminobenzoyloxybutyl)tetramethyldisiloxane was formed by the reduction of bis(p-nitrobenzoyloxybutyl)tetramethyldisiloxane with hydrazine hydrate.The corresponding methacroyloxy derivatives were isolated by the condensation of (methacroyloxybutyl)dimethylchlorosilane with 2-hydroxy-2,4,4,6,6,8,8-heptamethylcyclotetrasiloxane or 2-hydroxy-4,4,6,6,8,8,10,10,12,12-undecamethylcyclohexasiloxane.The mass spectra of these compounds are given.
