Method of converting a carboxylic acid or carboxylic acid halide group to a trihalomethyl group
申请人:ICI AMERICAS INC.
公开号:EP0281965A1
公开(公告)日:1988-09-14
Carboxylic acid or carboxylic acid halide groups on aryl or heterocyclic aryl rings are directly converted to trihalomethyl groups by using a phenylhalophosphorane, optionally generated in situ by reaction of a phenylphosphonous halide and chlorine.
Development of fluorination methods using continuous-flow microreactors
作者:Marcus Baumann、Ian R. Baxendale、Laetitia J. Martin、Steven V. Ley
DOI:10.1016/j.tet.2009.05.083
日期:2009.8
The safe and reliable use of various fluorination methods including nucleophilic fluorination (DAST), trifluoromethylation (Ruppert's reagent) and electrophilic fluorination (Selectfluor®) in a continuous-flow microreactor is reported. Special attention was given to the use of in-line scavenging procedures in order to obtain clean products without the need for further purification.