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    • 1. 发明授权
    • Preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone
    • 1-氨基-2-苯氧基-4-羟基蒽醌的制备
    • US4278606A
    • 1981-07-14
    • US128118
    • 1980-03-07
    • Heinrich HillerHeinz EilingsfeldHelmut ReinickeFritz Traub
    • Heinrich HillerHeinz EilingsfeldHelmut ReinickeFritz Traub
    • C07C225/36C09B1/54C07C97/26
    • C09B1/547
    • 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.
    • 在碱性水性介质中,在升高的温度下,通过使1-氨基-2-卤代-4-羟基蒽醌与苯酚反应来制备1-氨基-2-苯氧基-4-羟基蒽醌的方法中,1-氨基 -2-氯-4-羟基蒽醌在水悬浮液中,在9-13℃和120-150℃下与苯酚在(a)铵盐N(+)( R)4A( - ),其中一个或多个R是直链或支链C 4 -C 20 - 烷基或C 7 -C 10 - 苯基烷基,其余的R或R也可以是苯基或N(+)(R)3可以是吡啶鎓, A( - )是(b)环氧乙烷/环氧丙烷嵌段共聚物或(c)烷基酚,链烯基胺,烷基胺或链烷醇的氧乙基化产物的阴离子的当量。 获得非常纯的产物,产率高。