Oxidative radical 1,2-alkylarylation of alkenes with α-C(sp<sup>3</sup>)–H bonds of acetonitriles involving 1,2-aryl migration
作者:Yang Li、Bang Liu、Hai-Bing Li、Qiuan Wang、Jin-Heng Li
DOI:10.1039/c4cc08902b
日期:——
unactivated alkenes with the alpha-C(sp(3))-H bonds of acetonitriles for the synthesis of 5-oxo-pentanenitriles is presented. In the presence of TBPB (tert-butyl peroxybenzoate), a variety of alpha-aryl allylic alcohols underwent the 1,2-alkylarylation reaction with acetonitriles, giving 5-oxo-pentanenitriles in good to excellent yields. This method proceeds via the C(sp(3))-H oxidative coupling with the
Visible-light-induced 1,2-alkylarylation of alkenes with a-C(sp3)–H bonds of acetonitriles involving neophyl rearrangement under transition-metal-free conditions
An efficient visible-light-induced difunctionalization of alkenes with a-C(sp3)–H bonds of nitriles is described for the constructing of diverse 5-oxo-pentanenitriles under transition-metal-free conditions. This protocol proceeds via the functionalization of C(sp3)–H bond and radical addition/intramolecular 1,2-aryl migration processes, which features a wide scope of substituted α,α-diaryl allylic
Visible-Light Photocatalytic Difluoroalkylation-Induced 1, 2-Heteroarene Migration of Allylic Alcohols in Batch and Flow
作者:Xiao-Jing Wei、Timothy Noël
DOI:10.1021/acs.joc.8b01624
日期:2018.9.21
A convenient method for the preparation of sp(3)-rich heterocycles is reported. The method comprises a photocatalytic difluoroalkylation-induced 1,2-heteroarene migration of allylic alcohols. Here we describe for the first time the benefits of using flow to facilitate such migration reactions, including shorter reaction times, higher selectivities, and opportunities to scale the chemistry.