Selenium-Catalyzed Oxidative C(sp<sup>2</sup>)–H Amination of Alkenes Exemplified in the Expedient Synthesis of (Aza-)Indoles
作者:Stefan Ortgies、Alexander Breder
DOI:10.1021/acs.orglett.5b01156
日期:2015.6.5
A new selenium-catalyzed protocol for the direct, intramolecular amination of C(sp2)–H bonds using N-fluorobenzenesulfonimide as the terminal oxidant is reported. This method enables the facile formation of a broad range of diversely functionalized indoles and azaindoles derived from easily accessible ortho-vinyl anilines and vinylated aminopyridines, respectively. The procedure exploits the pronounced
报道了一种使用N-氟苯磺酰亚胺作为末端氧化剂直接,分子内胺化C(sp 2)-H键的新的硒催化方案。该方法能够容易地形成分别衍生自容易获得的邻乙烯基苯胺和乙烯基化氨基吡啶的多种多样的功能化的吲哚和氮杂吲哚。该方法利用硒亲电试剂的显着的亲碳性来催化烯烃的活化,并导致高产率且具有出色的官能团耐受性的C(sp 2)–N键形成。