申请人:Stauffer Chemical Company
公开号:US04748245A1
公开(公告)日:1988-05-31
A process for the preparation of phenylthiopyrimidines which comprises: (a) reacting a thiopyrimidine; with sulfuryl chloride in the presence of a suitable solvent to form the sulfenyl chloride of said thiopyrimidine; (b) reacting said sulfenyl chloride of said thiopyrimidine with a phenol or substituted phenol, optionally in the presence of a Friedal-Crafts catalyst, to form a thiopyrimidinyl phenol; and (c) reacting said thiopyrimidinylphenol formed in step (b) with a base and an alkylating agent to form the end product.
制备苯硫嘧啶的过程包括:(a) 在适当溶剂的存在下,将硫代嘧啶与亚磺酰氯反应,形成所述硫代嘧啶的硫烯基氯化物;(b) 将所述硫烯基氯化物与苯酚或取代苯酚反应,可选地在弗里德尔-克拉夫茨催化剂的存在下,形成硫代嘧啶基苯酚;(c) 将步骤(b)中形成的硫代嘧啶基苯酚与碱和烷基化剂反应,形成最终产物。