申请人:Clariant GmbH
公开号:US20040198995A1
公开(公告)日:2004-10-07
A process for preparing acyloxybenzenesulfonates by reacting a carboxylic acid derivative with a salt of a phenolsulfonic acid in the presence of an antioxidant, preferably 2,6-di-tert-butyl-4-methylphenol. The addition of such antioxidants gives a product having a high color quality.
通过在
抗氧化剂存在下,将
羧酸衍
生物与
苯磺酸盐反应,制备乙酰氧基
苯磺酸酯的方法,最好使用
2,6-二叔丁基-4-甲基苯酚。添加这种
抗氧化剂可使产品具有高色彩质量。