FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing novel N-alkyl-3-methyl-4-nitrosoanilines of formula where R=i-Pr, cyclohexyl. The compounds can be used as modifiers and stabilisers of rubber mixtures and as starting compounds for synthesis of N-substituted n-phenylene diamines, which are used to produce a wide range of azo dyes and in colour photography. The method involves cyclocondensation of acetone and the corresponding amine with a product of nitrosation of 4,4-dimethoxybutan-2-one, which is first held in aqueous hydrochloric acid solution.
EFFECT: improved method.
2 ex
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Authors
Dates
2012-12-27—Published
2011-03-29—Filed