Rate Acceleration of Nucleophilic Substitution of 2-Chloro-4,6-dimethoxypyrimidine by Sulfinate Catalysis
摘要:
The use of sulfinates greatly enhances the rate of substitution in the reaction of 2-chloro-4,6-dimethoxypyrimidine with alkoxy or aryloxy nucleophiles. Pyrimidinyloxy derivatives as intermediates for potent herbicides have been prepared in good yields from the readily available 2-chloro-4,6-dimethoxypyrimidine. (C) 2000 Elsevier Science Ltd. All rights reserved.
Process for the preparation of substituted pyrimidines
申请人:Lonza AG
公开号:US05840892A1
公开(公告)日:1998-11-24
A novel process for the preparation of substituted pyrimidine derivatives of the general formula: ##STR1## in which a halopyrimidine is reacted in the presence of a sulfinate with a compound selected from the series: ##STR2## The compounds of the general formula I are precursors of, for example, compounds with herbicidal activity.
Rate Acceleration of Nucleophilic Substitution of 2-Chloro-4,6-dimethoxypyrimidine by Sulfinate Catalysis
作者:Yves Bessard、Roger Crettaz
DOI:10.1016/s0040-4020(00)00390-2
日期:2000.6
The use of sulfinates greatly enhances the rate of substitution in the reaction of 2-chloro-4,6-dimethoxypyrimidine with alkoxy or aryloxy nucleophiles. Pyrimidinyloxy derivatives as intermediates for potent herbicides have been prepared in good yields from the readily available 2-chloro-4,6-dimethoxypyrimidine. (C) 2000 Elsevier Science Ltd. All rights reserved.