The trifluoromethylation of chloroaromatics using the copper-CF2Br2 - dialkylamide reaction system
摘要:
The in situ generation of CuCF3 from the reaction of copper, dibromodifluoromethane and either N,N-dimethylformamide or N,N-dimethylacetamide (Burton's reagent) has been used for the direct substitution of chlorine by CF3 in a number of aromatic substrates. Particular attention has been paid to the effects of ring substituents on the efficiency of reaction.
Procédé de préparation d'orthotrifluorométhylaniline
申请人:RHONE-POULENC SPECIALITES CHIMIQUES
公开号:EP0054464B1
公开(公告)日:1984-11-21
Process for treating dinitroanilines with sulfite to reduce impurities and to reduce the ability to produce nitrosamines
申请人:DOWELANCO
公开号:EP0479384B1
公开(公告)日:1994-08-17
US4387246A
申请人:——
公开号:US4387246A
公开(公告)日:1983-06-07
US5196585A
申请人:——
公开号:US5196585A
公开(公告)日:1993-03-23
The trifluoromethylation of chloroaromatics using the copper-CF2Br2 - dialkylamide reaction system
作者:James H Clark、James E Denness、Martin A McClinton、Andrew J Wynd
DOI:10.1016/s0022-1139(00)85007-1
日期:1990.12
The in situ generation of CuCF3 from the reaction of copper, dibromodifluoromethane and either N,N-dimethylformamide or N,N-dimethylacetamide (Burton's reagent) has been used for the direct substitution of chlorine by CF3 in a number of aromatic substrates. Particular attention has been paid to the effects of ring substituents on the efficiency of reaction.