Highly efficient iodine-catalyzed hydroarylation of arenes with styrenes
作者:Cheng-Ming Chu、Wan-Ju Huang、Ju-Tsung Liu、Ching-Fa Yao
DOI:10.1016/j.tetlet.2007.07.178
日期:2007.9
Iodine mediates the hydroarylation of styrenes with arenes and heteroarenes to afford 1,1-diarylalkanes in good to high yields. Details regarding the substrate scope and selectivity of this hydroarylation reaction are discussed.
A Novel InCl<sub>3</sub>/SiO<sub>2</sub>-Catalyzed Hydroarylation of Arenes with Styrenes under Solvent-Free Conditions
作者:Zhiyong Wang、Ming-Ming Zhou、Gaojun Sun、Huayin Sun
DOI:10.1055/s-2008-1042917
日期:——
A novel InCl 3 /SiO 2 -catalyzed hydroarylation of various styrenes with arenes has been developed. The reaction can be carried out under solvent-free conditions to afford a series of 1,1-di-arylalkanes in high yields and with good regioselectivities. The catalyst can be reused six times without obvious loss of catalytic activity.
A catalytic amount of a sterically and electronically tuned diarylsulfonamide promoted allylic and benzylic C–H arylations in cooperation with a visible light photoredox catalyst. This is the first example of the catalytic use of a sulfonamidyl radical to promote the hydrogen atom transfer process.
Switchable Direct Oxygenative Arylation of C(sp<sup>3</sup>)–H Bonds via Electrophotocatalysis
作者:Yan Zhang、Xiang Sun、Ji-Hu Su、Tong Li、Chengbin Du、Kuiliang Li、Qi Sun、Zhenggen Zha、Zhiyong Wang
DOI:10.1021/acs.orglett.3c01751
日期:2023.7.14
A metal-free electrophotochemical C(sp3)-H arylation was developed under mild conditions. This method enables a switchable synthesis of diaryl alcohols and diaryl alkanes from inactive benzylic carbons. More importantly, a cheap and safe mediator N-chlorosuccinimide (NCS) was developed, which was employed for the hydrogen atom transfer (HAT) process of the benzylic C–H bond. In addition, this active
Direct C(sp<sup>3</sup>)–H Arylation of Unprotected Benzyl Anilines and Alkylarenes by Organocatalysis under Visible Light
作者:Cheng Huang、Peng Xiao、Zhong-Ming Ye、Chen-Lu Wang、Chen Kang、Sheng Tang、Zhenhong Wei、Hu Cai
DOI:10.1021/acs.orglett.3c03980
日期:2024.1.12
alkylarenes via consecutive photoinduced electron transfer by visiblelight irradiation. Reductive quenching cycles and radical–radical cross-coupling were involved, and electron paramagnetic resonance experiments provide evidence for the formation of radical intermediates formed in situ. The protocol highlights transition metalfree, external oxidantfree, broad substrate scope, and high efficiency (>60 examples