Asymmetric synthesis of α-alkenyl homoallylic primary amines via 1,2-addition of Grignard reagent to α,β-unsaturated phosphonyl imines
作者:Yiwen Xiong、Haibo Mei、Chen Xie、Jianlin Han、Guigen Li、Yi Pan
DOI:10.1039/c3ra42927j
日期:——
A series of chiral N-phosphonyl protected alpha-alkenyl homoallylic primaryamines were synthesized by asymmetric addition of allylmagnesium bromide Grignard reagent towards chiral alpha,beta-unsaturated imines. Only 1,2-adduct was obtained for all the imines with good yields and excellent diastereoselectivities. The chiral auxiliary could be easily removed under simple conditions, giving free multiple