文摘
We report the synthesis of 伪,尾-unsaturated acylsilanes via the perrhenate-catalyzed Meyer鈥揝chuster rearrangement of 1-silylalkyn-3-ols. Propargylic alcohols derived from TES-acetylene and substituted benzaldehydes can be converted to acylsilanes using a combination of p-TSA路H2O and n-Bu4N路ReO4, or Ph3SiOReO3 in good yields. Some propargylic alcohols derived from ketones, as well as aliphatic and unsaturated aldehydes, can also be converted to acylsilanes; however, they were often prone to side reactions.