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    • 10. 发明授权
    • Process for the preparation of thioindigo compounds
    • 制备硫靛化合物的方法
    • US4260778A
    • 1981-04-07
    • US40520
    • 1979-05-21
    • Detlef-Ingo SchutzeKlaus Wunderlich
    • Detlef-Ingo SchutzeKlaus Wunderlich
    • C09B7/10
    • C09B7/10
    • Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above andX designates halogen, such as bromine and, preferably, chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and SO.sub.2 and the resulting intermediate product is then oxidized in a manner which is in itself known, if appropriate after first being isolated, and the mixture is worked up to give the compounds of the formula (I).
    • 制备式(I)的硫靛化合物的方法,其中A和B表示相同或不同的任选取代的苯环或苯环,其上还有碳环和杂环稠合,其特征在于式 (IIa)(IIb)其中A和B具有上述含义,X表示卤素,例如溴,优选氯,在卤化铝,碱金属卤化物的液体混合物中反应 然后将所得中间产物以本身已知的方式氧化,如果在首次分离后适当,则将其混合,得到式(I)化合物。