Domino Alkene-Isomerization–Claisen Rearrangement Strategy to Substituted Allylsilanes
摘要:
A one-pot isomerization Claisen protocol has been developed for the synthesis of highly substituted allylsilanes. Monosilylated divinyl ethers can be isomerized using a cationic iridium(I) catalyst followed by a thermal Claisen rearrangement to provide the allylsilanes in excellent yields and diastereoselectivities.
PtCl2/XPhos: A highly efficient and readily available catalyst for the hydrosilylation of propargylic alcohols
作者:Mark G. McLaughlin、Matthew J. Cook
DOI:10.1039/c1cc14433b
日期:——
A highly regioselectivehydrosilylation of propargylicalcohols has been developed using an in situ prepared PtCl(2)/XPhos catalyst system. The reaction is tolerant of many functional groups and exhibits excellent regio and geometric selectivity.