Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Dingben Chen"'
Autor:
Dingben Chen, Ling Huang, Mingyu Liang, Xiaojing Chen, Dongdong Cao, Pan Xiao, Chuanfa Ni, Jinbo Hu
Publikováno v:
Molecules, Vol 29, Iss 12, p 2905 (2024)
The direct 1,6-nucleophilic difluoromethylation, trifluoromethylation, and difluoroalkylation of para-quinone methides (p-QMs) with Me3SiRf (Rf = CF2H, CF3, CF2CF3, CF2COOEt, and CF2SPh) under mild conditions are described. Although Me3SiCF2H shows l
Externí odkaz:
https://doaj.org/article/070b5fb724e44b36909f962e7e864f75
Autor:
Dongdong Cao, Gang Chen, Dingben Chen, Zhijun Xia, Zongyang Li, Yi Wang, Dongqing Xu, Jianguo Yang
Publikováno v:
ACS Omega, Vol 6, Iss 26, Pp 16969-16979 (2021)
Externí odkaz:
https://doaj.org/article/10e1fea72f6148e58f7c081ebdc62143
Publikováno v:
SCIENTIA SINICA Chimica. 53:375-387
Publikováno v:
Chemical Communications. 57:319-322
TMSCFX2 (X = Cl, Br; TMS = trimethylsilyl) have been developed as halofluorocarbene (CFX, X = Cl, Br) precursors for [2+1] cyclopropanation with alkenes. Structurally diverse halofluorocyclopropanes were obtained in good to excellent yields. It was f
Publikováno v:
Chemical communications (Cambridge, England). 57(3)
TMSCFX2 (X = Cl, Br; TMS = trimethylsilyl) have been developed as halofluorocarbene (CFX, X = Cl, Br) precursors for [2+1] cyclopropanation with alkenes. Structurally diverse halofluorocyclopropanes were obtained in good to excellent yields. It was f
Publikováno v:
Organic Letters. 18:5912-5915
An atom-economical method for radical (phenylsulfonyl)difluoromethylation of isocyanides with PhSO2CF2H under transition-metal-free conditions has been developed. A PhSO2CF2 radical is generated through the oxidation of PhSO2CF2– after the deproton
Publikováno v:
The Journal of organic chemistry. 84(13)
The fluoroalkylation of various nucleophilic reagents with (phenylsulfonyl)difluoromethyl (PhSO2CF2)-substituted phenanthridines was achieved to give fluorinated phenanthridine derivatives, which enables the construction of both carbon-heteroatom and
Publikováno v:
Angewandte Chemie International Edition. 55:12632-12636
A pentacoordinate bis(difluoromethyl)silicate anion, [Me3 Si(CF2 H)2 ](-) , is observed for the first time by the activation of Me3 SiCF2 H with a nucleophilic alkali-metal salt and 18-crown-6. Further study on its reactivity by tuning the countercat
Publikováno v:
Angewandte Chemie. 128:12822-12826
Autor:
Limin Wang, Jinbo Hu, Pan Xiao, Xinjin Li, Yunze Wang, Mingyou Hu, Chuanfa Ni, Dingben Chen, Jingwei Zhao, Jian Rong
Publikováno v:
Chemistry - An Asian Journal. 11:1789-1792
A new method for the formation of 1,1-difluoroethyl copper species ("CuCF2 CH3 ") with 1,1-difluoroethylsilane (TMSCF2 CH3 ) has been developed. The "CuCF2 CH3 " species can be applied to the efficient 1,1-difluoroethylation of diaryliodonium salts u