M. Steinmetz, B. Udayakumar
Nov 28, 1989
Citations
0
Influential Citations
21
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Chloroplatinic acid catalyzed, intramolecular hydrosilylation of acetylenes of structure HMe 2 Si[CH 2 ] n SiMe 2 CCR (R H or Ph, n = 2 or 3) proceeds via syn addition of the SiH group to the carbon triple bond to give, predominantly, cyclic products having an exocyclic rather than an endocyclic double bond. When n = 1 (R H), only recovered starting material is obtained. Closure of (4-hexynyl)dimethylsilane can also be effected to produce, exclusively, 1,1-dimethyl-2-methylene-1-silacyclopentane.