申请人:Pasquinet Eric
公开号:US20130178655A1
公开(公告)日:2013-07-11
The invention relates to a method for synthesizing 3,5-dichloroanisole from 1,3,5-trichlorobenzene, which comprises:
a) the reaction between 1,3,5-trichlorobenzene and a methanolate of an alkaline or alkaline-earth metal in a first solvent chosen from among dimethylsulfoxide and 1,1,3,3-tetramethylurea;
b) the precipitation of the product resulting from step a) in a second solvent which is not included among substances considered carcinogenic, mutagenic and/or toxic for reproduction by Regulation (EC) n° 1272/2008 of the European Parliament and of the Council of 16 Dec. 2008; then
c) the recovery of the precipitate thus obtained.
Application: synthesis of 1,3,5-triamino-2,4,6-trinitrobenzene of which 3,5-dichloroanisole is an intermediate product.
本发明涉及一种从1,3,5-三氯苯合成3,5-二氯甲氧基苯的方法,包括:a)在二甲基亚砜和1,1,3,3-四甲基脲中选择一种第一溶剂,使1,3,5-三氯苯与碱金属或碱土金属的甲醇醇盐反应;b)在不被欧洲议会和理事会2008年12月16日颁布的第1272/2008号法规认定为致癌、致突变和/或对生殖有毒的物质之列的第二溶剂中沉淀步骤a)中得到的产物;c)回收得到的沉淀。应用:合成1,3,5-三氨基-2,4,6-三硝基苯,其中3,5-二氯甲氧基苯是中间产物。