作者:Guobi Chai、Rong Zeng、Chunling Fu、Shengming Ma
DOI:10.1002/ejoc.201201209
日期:2013.1
conjugate additions between 1-(trimethylsilyl)allene-1-carboxylates and Grignard reagents in good to excellent yields. The use of Et2O as solvent for Grignard reagents was found to be very important for the diastereoselectivity of the reaction. Applications of the prepared allylic silanes for the stereocontrolled synthesis of α,β-alkenoates, a β,γ-alkenoate, and an allylic fluoride have been demonstrated
立体定义的多取代 α-(甲氧基羰基)烯丙基硅烷是通过铁催化的 1-(三甲基甲硅烷基)丙二烯-1-羧酸盐和格氏试剂之间的共轭加成以良好到极好的产率合成的。发现使用 Et2O 作为格氏试剂的溶剂对于反应的非对映选择性非常重要。制备的烯丙基硅烷在α,β-烯酸酯、β,γ-烯酸酯和烯丙基氟化物的立体控制合成中的应用已经得到证实。