发明授权
US4204056A Process and intermediates for preparing fiber-reactive phthalocyanine dyes 失效
制备纤维反应性酞菁染料的方法和中间体

Process and intermediates for preparing fiber-reactive phthalocyanine
dyes
摘要:
Process for preparing fiber-reactive water-soluble phthalocyanine azo dyes, using the following conversion stages ##STR1## followed by the diazonium coupling of the fiber-reactive group to the pyrazole ring. The novel intermediates are desirable products.
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