1,3-Bis[2-(ethynyldimethylsilyl)vinyl]tetramethyldisiloxane and Macrocyclic Polyunsaturated Siloxanes on Its Basis

Autor:	A. I. Albanov, N. K. Yarosh, O. G. Yarosh, M. G. Voronkov, Larisa V. Zhilitskaya
Rok vydání:	2005
Předmět:	NMR spectra database Hydrolysis chemistry.chemical_compound Dimethylsilane chemistry Hydrosilylation Organic chemistry General Chemistry Disiloxane Medicinal chemistry Chloroplatinic acid Derivative (chemistry)
Zdroj:	Russian Journal of General Chemistry. 75:1230-1233
ISSN:	1608-3350 1070-3632
DOI:	10.1007/s11176-005-0402-z
Popis:	Hydrosilylation of diethynyldimethylsilane with tetramethyldisiloxane in the presence of chloroplatinic acid give rise to a mixture of three stereoisomers of 1,3-bis[2-(ethynyldimethylsilyl)vinyl]tetramethyldisiloxane: trans-trans, gem-trans, and gem-gem. Hydrolysis of chloro[2-(ethynyldimethylsilyl)vinyl]dimethylsilane provides the trans-trans isomer of 1,3-bis[2-(ethynyldimethylsilyl)vinyl]tetramethyldisiloxane exclusively. Reactions of an organomagnesium derivative of the disiloxane with dichlorodiorganylsilanes allowed synthesis of novel polyunsaturated macrocyclic siloxanes. The 1H, 13C, and 29Si NMR spectra of the products were studied.
Databáze:	OpenAIRE
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