Visible-Light-Mediated Remote γ-C(sp<sup>3</sup>)–H Functionalization of Alkylimidates: Synthesis of 4-Iodo-3,4-dihydropyrrole Derivatives
作者:Yogesh Kumar、Yogesh Jaiswal、Amit Kumar
DOI:10.1021/acs.orglett.8b02022
日期:2018.8.17
dihydropyrrole derivatives is reported. The developed protocol proceeds via chemoselective intramolecular N–C bond formation of alkylimidates through 1,5-hydrogen atom transfer from in situ generated imidate N-radicals. The major advantage of this designed strategy lies in the choice of starting materials, mild reaction conditions, high chemo- and diastereoselectivity, clean source of energy, and good functional
报道了一种对功能化的二氢吡咯衍生物的有效且环境友好的合成方法。通过从原位生成的亚氨酸根N-自由基通过1,5-氢原子转移,烷基亚氨酸盐的化学选择性分子内N-C键形成进行了开发。这种设计策略的主要优点在于原料的选择,温和的反应条件,高的化学和非对映选择性,清洁的能源以及良好的官能团耐受性。此外,4-碘二氢吡咯可以容易地转化成多种有用的衍生物。