addition of glycine derivatives to nitroalkenes have been developed. The enantioselectivity of ortho-substituted products can be significantly improved by using a new 1,2-P,N-ferrocene ligand L5. The α,γ-diaminoacid derivative was obtained without the loss of optical activity from the adduct.
已经开发了甘
氨酸衍
生物向硝基烯烃的第一个高度非对映和对映选择性催化不对称迈克尔加成反应。通过使用新的1,2- P,N-
二茂铁配体L5,可以显着提高邻位取代产物的对映选择性。获得了α,γ-二
氨基酸衍
生物,而没有加合物的光学活性损失。