Michael Addition of Methyl 2-(Trimethylsilyl)propenoate with Organomagnesiums or Organolithiums Leading to 1:1 and/or 2:1 Adducts and Subsequent Peterson Olefination by Condensation with Carbonyl Compounds
作者:Junji Tanaka、Shuji Kanemasa、Yusuke Ninomiya、Otohiko Tsuge
DOI:10.1246/bcsj.63.466
日期:1990.2
Michael addition of methyl 2-(trimethylsilyl)propenoate with organomagnesiums or organolithiums leads to 1:1 and/or 1:2 adduct anions which can be utilized in the subsequent step of Peterson olefination with carbonyl compounds. The 1:1/1:2 ratio depends upon the nature of donor molecules, the reaction conditions such as reaction temperature, polarity of solvent, and rate of addition of the acceptor
2-(三甲基甲硅烷基)丙烯酸甲酯与有机镁或有机锂的迈克尔加成产生1:1和/或1:2的加合物阴离子,其可用于与羰基化合物的彼得森烯化的后续步骤。1:1/1:2 的比例取决于供体分子的性质、反应条件如反应温度、溶剂极性和受体分子的加入速率。过量使用受体会导致选择性形成 1:2 和/或 1:3 加合物。