Regioselective Vinylation of Remote Unactivated C(sp<sup>3</sup>)−H Bonds: Access to Complex Fluoroalkylated Alkenes
作者:Shuo Wu、Xinxin Wu、Dongping Wang、Chen Zhu
DOI:10.1002/anie.201812927
日期:2019.1.28
particular functional group into aliphatic sites by direct activation of unreactive C−H bonds is of great synthetic value. Despite advances in radical‐mediated functionalization of C(sp3)−H bonds by a hydrogen‐atom transfer process, the site‐selective vinylation of remote C(sp3)−H bonds still remains underexplored. Reported herein is a new protocol for the regioselective vinylation of unactivatedC(sp3)−H
2,2-dimethylcyclopropyl 4-methylphenyl ketone as a SET probe
作者:Jack W. Timberlake、Tonghua Chen
DOI:10.1016/0040-4039(94)88070-0
日期:1994.8
2,2-Dimethylcyclopropyl4-methylphenylketone in the presence of SmI2 and DMPU is a good SETprobe. The ortho positions of the aromatic ring provide a good source to trap the newly formed tertiary radical.
Regioselective Sulfonylvinylation of the Unactivated C(sp<sup>3</sup>)–H Bond via a C-Centered Radical-Mediated Hydrogen Atom Transfer (HAT) Process
作者:Shan Yang、Xinxin Wu、Shuo Wu、Chen Zhu
DOI:10.1021/acs.orglett.9b01734
日期:2019.6.21
Given the similarity of multiple sp(3) C-H bonds in electronic properties and bond dissociation energy (DE), regioselective sp(3) C-H bond functionalization remains a paramount challenge. Here, we report a C-centered radical-mediated approach for site-specific sulfonylvinylation of the C(sp(3))-H bond via the hydrogen atom transfer (HAT) process. The reaction features mild conditions, broad substrate scope, and high regioselectivity and stereoselectivity, manifesting the nontrivial synthetic potential.
Timberlake Jack W., Chen Tonghua, Tetrahedron Lett, 35 (1994) N 33, S 6043-6046
作者:Timberlake Jack W., Chen Tonghua
DOI:——
日期:——
Cyclization-rearrangement of alkylstyrenes. 1. A. 1-Phenyl-1-pentene and homologs. B. A short synthesis of calamenene