Copper-Catalyzed Radical Aminotrifluoromethylation of Alkenes
作者:Haiwen Xiao、Haigen Shen、Lin Zhu、Chaozhong Li
DOI:10.1021/jacs.9b06141
日期:2019.7.24
We report herein an unprecedented protocol for aminotrifluoromethylation of alkenes. With Cu(OTf)2 as the catalyst, the reaction of alkenes, (bpy)Zn(CF3)2 and N-fluorobis(benzenesulfonyl)imide (NFSI) at room temperature provides the corresponding aminotrifluoromethylation products in satisfactory yields with high regioselectivity opposite to those driven by CF3 radical addition. The method exhibits
Cobalt-Catalyzed Divergent Aminofluorination and Diamination of Styrenes with <i>N</i>-Fluorosulfonamides
作者:Peng Guo、Jun-Fa Han、Guo-Cai Yuan、Lin Chen、Jia-Bin Liao、Ke-Yin Ye
DOI:10.1021/acs.orglett.1c01308
日期:2021.5.21
A cobalt-catalyzed aminofluorination reaction of styrenes with N-fluorosulfonamides serving as both the amination and fluorination agents has been developed. The switch of selectivity in this catalytic reaction from aminofluorination to diamination could be easily achieved by the addition of 1.0 equiv of PPh3. Both transformations tolerated a wide array of substrates under mild reaction conditions
Asymmetric Copper-Catalyzed Intermolecular Aminoarylation of Styrenes: Efficient Access to Optical 2,2-Diarylethylamines
作者:Dinghai Wang、Lianqian Wu、Fei Wang、Xiaolong Wan、Pinhong Chen、Zhenyang Lin、Guosheng Liu
DOI:10.1021/jacs.7b02455
日期:2017.5.24
After addition to styrene, the generated benzylic radical could couple with a chiral L*CuIIAr complex to achieve enantioselective arylation. Various optical 2,2-diarylethylamines were efficiently synthesized from simple styrenes with high enantioselectivity, and these products can serve as valuablesynthons toward bioactive molecules' synthesis.