申请人:BASF Aktiengesellschaft
公开号:US04278606A1
公开(公告)日:1981-07-14
In a process for the preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone by reacting 1-amino-2-halogeno-4-hydroxyanthraquinone with a phenol in an alkaline aqueous medium at an elevated temperature, the improvement that 1-amino-2-chloro-4-hydroxyanthraquinone is reacted in aqueous suspension, at a pH of from 9 to 13 and at from 120.degree. to 150.degree. C., with the phenol in the presence of (a) ammonium salts N.sup..sym. (R).sub.4 A.sup..crclbar., wherein one or more R's are linear or branched C.sub.4 -C.sub.20 -alkyl or C.sub.7 -C.sub.10 -phenylalkyl and the remaining R or R's may also be phenyl or N.sup..sym. (R).sub.3 may be pyridinium, and A.sup..crclbar. is one equivalent of an anion, of (b) ethylene oxide/propylene oxide block copolymers or of (c) oxyethylation products of alkylphenols, of alkenylamines, of alkylamines or of alkanols. A very pure product is obtained, in high yield.
在制备1-氨基-2-苯氧基-4-羟基蒽醌的过程中,通过在碱性水介质中,在升高的温度下,将1-氨基-2-卤代-4-羟基蒽醌与苯酚反应,改进了方法,即在水悬浮液中以pH为9至13,120℃至150℃的条件下,与苯酚在以下存在下反应:(a)铵盐N.sup..sym.(R).sub.4 A.sup..crclbar.,其中一个或多个R为线性或支链C.sub.4-C.sub.20-烷基或C.sub.7-C.sub.10-苯基烷基,其余的R或R也可以是苯基或N.sup..sym.(R).sub.3可以是吡啶基,A.sup..crclbar.是一个阴离子的当量,或(b)乙氧基/丙氧基嵌段共聚物,或(c)烷基酚、烯基胺、烷基胺或脂肪醇的氧乙烯化产物。可以得到高产率的非常纯净的产物。