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。