The recent developments in conventional synthesis of naphthol are summarized, including sulfonation alkali-fusion, via isopropyl naphthalene, hydrolysis, via tetrahydronaphthalene.

摘要简述了近年来一元酚传统合成技术的发展，包括磺法、异丙法、解法、四氢法。

Recent method of synthesizing 3,5-xylenol is sulpho alkaline fusion of dimethylbenzene,it is a very complicated procedure with serious pollution and low-pure products.

内目前生产工艺是间二甲苯的磺法,该方法工艺过程复杂、污染严重,并且产品纯度不高。