Cyclic &bgr;-(acylamino)acrylate derivatives were hydrogenated using Ru-chiral phosphine ligand catalysts and thereafter converted to the corresponding cyclic &bgr;-aminoacids in high yield and enantioselectivity according to the reaction scheme:
1
使用Ru-手性
膦配体催化剂对环状&bgr;-(酰胺基)
丙烯酸酯衍
生物进行氢化反应,然后根据反应方案将其转化为相应的环状&bgr;-
氨基酸,收率和对映选择性均很高。1