| 摘要 |
1500927 Monoacylation of aromatic primary diamines IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Oct 1976 [10 Dec 1975] 50642/75 Heading C2C The invention comprises a process for the manufacture of monocarboxylic acid amides by monoacylation of an aromatic primary diamine containing no anionic water solubilizing group by reaction of a mineral acid salt of said diamine with an acylating agent derived from a carboxylic acid in an aqueous medium, the pH of the reaction mixture being maintained in the range of 1À5 to 3À5 throughout the reaction.
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