Zinc-Salen-Catalyzed Asymmetric Alkynylation of Alkyl Acylsilanes
作者:Feng-Quan Li、Shi Zhong、Gui Lu、Albert S. C. Chan
DOI:10.1002/adsc.200900177
日期:2009.8
synthesis, and their direct access by enantioselective addition of alkyne nucleophiles to ketones has achieved significant progress over the last ten years. In view of the potential applications of acylsilanes as useful synthetic equivalents of aldehydes, we described a general catalytic enantioselective addition of terminal alkynes to alkyl acylsilanes. After reaction optimization involving variation