Construction of allylic amino acid derivatives through a catalytic asymmetric allylic alkylation of azlactones with vinyl cyclopropanes
2020
Liu, Zhenquan | Feng, Xing | Xu, Jingyao | Jiang, Xiangxing | Cai, Xiaoqing
A simple and concise asymmetric allylic alkylation of azlactones was developed for direct construction of quaternary amino acid derivatives. Electrophilic synthons vinyl propanes were used in the presence of Pd catalyst under mild conditions, which afforded the desired quaternary allylic amino acid derivatives in good to excellent yields with a high level of stereoselectivity.
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