PROCESS FOR THE PREPARATION OF 1-AMINO-4-££2-(SUBSTITUTED AMINO)METHYL-4-METHYL-6-SYLFOPHENYL|AMINO|-9,10-DIHYDRO-9,10-DIOXO-2-ANTHRQCENE SULFONIC ACID|AMINO|-9,10-DIHYDRO-9,10-DIOXO-2-ANTHRACENT SULFONIC ACID

摘要

In formula(I) and (II), X is H, methyl or radical and Y is H, halogen, nitro group, cyano group, acetyl group or C1-C6 aliphatic alkyl compound. Formula(III) compound reacts with oleum (SO3 concentration is 5-30 %, 4-8 times excess mole ratio) and become sulfonation. And then hydroxydethylamid derivatives of formula(II) is added and reacted for several hours. Reactant is cooled down to ambient temp. and solid is deposited by inputting the salt-ice. Finally formula(I) is obtained through filteration. The compound is used for intermidiates for manufacturing the blue color pigment. This process is simple and effective to oftain the high yield.