Enantioselective alkynylations of aromatic and aliphatic aldehydes catalyzed by terpene derived chiral amino alcohols
作者:Cian Christopher Watts、Praveen Thoniyot、Lacie C. Hirayama、Talia Romano、Bakthan Singaram
DOI:10.1016/j.tetasy.2005.03.036
日期:2005.5
Enantioselective alkynyl zinc additions to aromatic and aliphatic aldehydes have been studied using terpene derived chiral amino alcohol ligands. The limonene derived amino alcohol (1R,2R,5S)-2-methyl-5-(1-methylethenyl)-2-(1-pyrrolidinyl)cyclohexanol gave the most promising results. Chiral propargylic alcohols were obtained in good yields and moderate enantioselectivities (up to 60%).
已经使用萜烯衍生的手性氨基醇配体研究了向芳族和脂族醛中的对映选择性炔基锌加成物。柠檬烯衍生的氨基醇(1 R,2 R,5 S)-2-甲基-5-(1-甲基乙烯基)-2-(1-吡咯烷基)环己醇给出了最有希望的结果。以良好的产率和中等的对映选择性(高达60%)获得了手性炔丙醇。