申请人:Merck & Co., Inc.
公开号:US04230893A1
公开(公告)日:1980-10-28
4-Hydroxy-3-methoxyphenylacetone, an intermediate for methyldopa, has been prepared from reacting two moles of guaiacol and one mole of a 2-alkoxy propanol followed by basic elimination to form the enol ether of 4-hydroxy-3-methoxy phenyl acetone. The enol ether is subsequently converted to 4-hydroxy-3-methoxy phenyl acetone upon treatment with a strong acid.
4-羟基-3-甲氧基苯乙酮,是美托洛尔的中间体,是通过将两摩尔的愈创木酚和一摩尔的2-烷氧基丙醇反应制备而成,然后进行碱性消除反应形成4-羟基-3-甲氧基苯乙酮的烯醚。随后,通过与强酸处理,将烯醚转化为4-羟基-3-甲氧基苯乙酮。