[3 + 2] Cycloaddition of Nitrile Imines with Enamides: An Approach to Functionalized Pyrazolines and Pyrazoles
作者:Liang Tu、Limei Gao、Xiaomeng Wang、Ruijie Shi、Rupei Ma、Junfei Li、Xiaoshuang Lan、Yongsheng Zheng、Jikai Liu
DOI:10.1021/acs.joc.0c02244
日期:2021.1.1
with enamides has been established. A wide range of functionalized pyrazoline derivatives (53 examples) were obtained in moderate to good yields (up to 96%) under very mild conditions. This protocol features broad substrate scope, good functional group tolerance, and operational simplicity. Practical transformation of the products into useful pyrazoles via a one-pot process and the scalability of this