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11.
公开(公告)号:US5100588A
公开(公告)日:1992-03-31
申请号:US154057
申请日:1988-02-09
申请人: Fritz-Feo Grabley , Gerd Reinhardt , Roland Steinl
发明人: Fritz-Feo Grabley , Gerd Reinhardt , Roland Steinl
IPC分类号: C07C309/42 , C07C20060101 , C07C67/00 , C07C301/00 , C07C303/02 , C07C303/04 , C07C303/06 , C07C303/14 , C07C303/30 , C07C303/32 , C07C309/58 , C11D1/22 , C11D3/34
CPC分类号: C07C309/00
摘要: The process for the preparation of acyloxybenzenesulfonic acids of the general formula ##STR1## in which R denotes a (C.sub.1 -C.sub.17)-alkyl or (C.sub.2 -C.sub.17)-alkenyl radical, or alkali metal, alkaline earth metal or ammonium salts thereof, is carried out in the following stages: (a) sulfonation of phenol, (b) heat treatment of the phenolsulfonic acid formed as the intermediate product, (c) esterification of the phenolsulfonic acid and, if appropriate, (d) neutralization of the resulting (C.sub.2 -C.sub.18)-acyloxybenzenesulfonic acid. As a result of the incorporation of stage (b), the process affords products in which the proportion of the 1,4-isomer compared with the 1,2-isomer is markedly increased, as a result of which these products can be used, in particular, as perborate activators in detergents.
摘要翻译: 其中R表示(C1-C17) - 烷基或(C2-C17) - 烯基或其碱金属,碱土金属或铵盐的通式为“IMAGE”的酰氧基苯磺酸的制备方法为 在以下阶段进行:(a)苯酚的磺化,(b)作为中间产物形成的酚磺酸的热处理,(c)苯酚磺酸的酯化,如果合适的话,(d)中和所得的( C2-C18) - 酰氧基苯磺酸。 作为阶段(b)的结合,该方法提供了与1,2-异构体相比的1,4-异构体的比例显着增加的产物,由此可以使用这些产物, 特别是作为洗涤剂中的过硼酸盐活化剂。