Pyrrole Formation via Reactivity of η<sup>4</sup>-(Vinylketenimine)iron Complexes with Electron-Deficient Alkynes
作者:Tatsuo Okauchi、Akihiro Urakawa、Nagomi Tabuchi、Miten Arai、Tomoya Nakagawa、Taiga Ichimura、Hirokazu Shimooka、Mitsuru Kitamura
DOI:10.1021/acs.organomet.1c00321
日期:2021.9.13
η4-(vinylketenimine)iron complexes, pyrroles were produced. Pyrrole formation involved the [2 + 3] cycloaddition of alkyne to the ketenimine moiety, migration of the vinyl group, and decomplexation. Either alkynes bearing two electron-withdrawing groups, or terminal alkynes with an electron-withdrawing group reacted to generate pyrroles.
当缺电子
炔烃与 η 4 -(
乙烯基烯酮
亚胺)
铁配合物反应时,产生
吡咯。
吡咯的形成涉及
炔烃与烯酮
亚胺部分的 [2 + 3] 环加成、
乙烯基的迁移和解络。带有两个吸电子基团的
炔烃或带有吸电子基团的末端
炔烃反应生成
吡咯。