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PROCESS FOR THE PREPARATION OF BLUE NAPHTHOSTYRIL CATIONIC DYES

机译:蓝色萘甲酚蓝阳离子染料的制备方法

摘要

A process for the preparation of blue naphthostyril cationic dyes of the formula shown in Figure 1:(chemical formula)wherein R is H or CH 3, R 1 is phenyl or a naphthyl radical and R2 is methosulphate or a chloride radical which comprises reacting 1, 8-naphtholactam or a 1-methyl derivative thereof of the formula shown in Figure 2 :wherein R has the meanings stated above with a 1 morpholine derivative of the formula shown in Figure 3 :wherein R 1 has the meaning stated above, the reaction being effected in an organic solvent in the presence of phosphorous oxychloride and when 1, 8-naphtholactam is employed, further methylating the product with dimethyl sulphate.
机译:通式为蓝色的萘甲酚蓝色阳离子染料的制备方法,如图1所示:(化学式)其中R是H或CH 3,R 1是苯基或萘基,R2是甲硫酸盐或氯基,其包括与图2所示的式1的8-萘内酰胺或其1-甲基衍生物反应:其中R具有图3所示的式的1吗啉衍生物的上述含义:其中R 1具有上述含义,该反应在有机溶剂中在三氯氧化磷存在下进行,并且当使用1,8-萘内酰胺时,进一步用硫酸二甲酯使产物甲基化。

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