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公开(公告)号:US3917640A
公开(公告)日:1975-11-04
申请号:US34654473
申请日:1973-03-30
IPC分类号: C09B1/40 , C09B1/42 , C09B1/48 , C09B3/00 , C09B3/24 , C09B5/14 , C09B5/24 , C09B5/26 , C09B5/28 , C09B5/40 , C07D209/88
摘要: Useful vat dyestuffs can be prepared by reacting a mixture of aminoanthraquinones containing 65-80% 1-aminoanthraquinone and 20-35% of a mixture containing 2-aminoanthraquinone and 1,5- and 1,8-diaminoanthraquinones with, for example, a halogenated benzanthrone or anthraquinone. The mixture of aminoanthraquinones can be obtained by nitrating anthraquinone in sulfuric acid and thereafter reducing the resulting nitroanthraquinones.
摘要翻译: 可以通过使含有65-80%1-氨基蒽醌的氨基蒽醌和20-35%的含有2-氨基蒽醌和1,5-和1,8-二氨基蒽醌的混合物的混合物与例如卤代 苯并蒽醌或蒽醌。 氨基蒽醌的混合物可以通过在硫酸中硝化蒽醌并随后还原所得的硝基蒽醌来获得。