Pd-Catalyzed Triple-Fold C(sp<sup>2</sup>)–H Activation with Enaminones and Alkenes for Pyrrole Synthesis via Hydrogen Evolution
作者:Leiqing Fu、Yunyun Liu、Jie-Ping Wan
DOI:10.1021/acs.orglett.1c01301
日期:2021.6.4
The synthesis of NH-free pyrroles via Pd-catalyzed annulation of enaminones and alkenes is reported. With the catalysis of Pd(II), the activation of triple C(sp2)–H bonds, including one internal C(sp2)–H bond in enaminone, has been activated to provide various pyrroles. The interesting evolution of hydrogen gas from the reactions has been observed by a hydrogen detector.
报道了通过 Pd 催化烯胺酮和烯烃环化合成不含 NH 的吡咯。在 Pd(II) 的催化下,三重 C(sp 2 )-H 键的活化,包括烯胺酮中的一个内部 C(sp 2 )-H 键,已被活化以提供各种吡咯。氢气检测器已观察到反应中氢气的有趣演变。