有机颜料热稳定性的研究(Ⅳ)——2-氨甲酰基-4-硝基苯胺的合成及其偶氮颜料

摘要本文研究了以2-氰基-4-硝基苯胺为原料制备2-氨甲酰基-4-硝基苯胺及3-氨基-5-硝基-2,1-苯并异噻唑,并由它们与乙酰基乙酰芳胺衍生物合成黄色偶氮颜料。结果表明:2-氰基-4-硝基苯胺在亚硝基硫酸中,于70℃重氮化的同时可发生氰基的水解反应,制得2-氨甲酰基-4-硝基苯胺的重氮盐。分子中—CN,—CONH_2基团的引入以及乙酰基乙酰苯胺衍生物苯环上引入-OCH_3、-CH_3基均可改进颜料的鲜艳度与热稳定性。

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	周春隆
	马念春
	周春隆
	马念春

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Abstract： The methods of synthesizing 2-carbamonyl-4-nitroaniline and 3-amino-5- nitro-2,1-benzisothiazol from 2-cyano-4-nitroaniline were studied. A series yellow pigments were prepared by using these two compounds and acetoacetarylide derivatives. It was found that 2-cyano-4-nitroaniline can be hydrolyzed to give diazo salt of 2-carbamoyl-4-nitroaniline during diazotizing withnitrosyl sulfuric acid at 70℃. The presence of -CN and -CONH_2 in the diazocomponents, and of -OCH_3 and -CH_3 in the coupling components can imporove the shade and thermal stability of the pigments.

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Received 1989-10-15; published 1989-10-15

引用本文:

周春隆;马念春;.有机颜料热稳定性的研究(Ⅳ)——2-氨甲酰基-4-硝基苯胺的合成及其偶氮颜料[J]. 化学工业与工程, 1989,6(4): 8-17

Zho Chun-Lung, Ma Nian-Chun .Study of Thermal Stability of Organic Pigments(Ⅳ)——Synthesis of 2-Carbamoy1-4-nitroaniline and Its Azo Pigments[J]. Chemcial Industry and Engineering, 1989,6(4): 8-17