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- W771641119 abstract "The preparation of 5, 6-diaminobenzimidazolone was prepared from benzimidazolone through chlorination and aminolysis in autoclave, the yield was 80%. The optimal conditions were as follows: the temperature of chlorination n(NCS):n(C7H6ON2)=2.4 is 80℃ and lasting 6h, the yield of chlorination is 92%; the temperature of ammoniation was 210℃ and lasting 5 h, radio of 5, 6-diaminobenzimidazolone, ammonia and Copper sulphate is 1:10:0.02 (mol), the yield of chlorination was 87%. The final structure of intermediate and products were confirmed by NMR. The result shows the synthesis process was feasible, high quality and stable, it is suitable for industrialized manufacture." @default.
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- W771641119 date "2010-08-25" @default.
- W771641119 modified "2023-09-24" @default.
- W771641119 title "5,6-二氨基苯并咪唑酮的合成工艺研究" @default.
- W771641119 hasPublicationYear "2010" @default.
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