Accessible sugars as asymmetric olefin epoxidation organocatalysts: glucosaminide ketones in the synthesis of terminal epoxides
作者:Omar Boutureira、Joanna F. McGouran、Robert L. Stafford、Daniel P. G. Emmerson、Benjamin G. Davis
DOI:10.1039/b911675c
日期:——
A systematically varied series of conformationally restricted ketones, readily prepared from N-acetyl-D-glucosamine, were tested against representative olefins as asymmetric epoxidation catalysts showing useful selectivities against terminal olefins and, in particular, typically difficult 2,2-disubstituted terminal olefins.
一系列系统变化的构象限制酮,很容易从 N-乙酰基-D-氨基葡萄糖对作为不对称环氧化催化剂的代表性烯烃进行了测试,显示出对末端烯烃的有用选择性,特别是典型的难处理的 2,2-二取代末端烯烃。