Asymmetric Michael addition of malonates to various α,β-unsaturated aldehydes using an organocatalyst derived from trans-4-hydroxyproline in MeOH proceeds smoothly to afford the corresponding Michael adducts in high yields with high to excellent enantioselectivities.
使用源自
反式-4-羟脯
氨酸的有机催化剂,在
甲醇中对各种α,β-不饱和醛进行不对称迈克尔加成,反应顺利进行,得到相应的迈克尔加成产物,产率高且对映选择性高至优异。