Process for the monoacylation of an aromatic primary diamine

Details Process for the monoacylation of an aromatic primary diamine Process for the monoacylation of an aromatic primary diamine

1976-11-19

1978-03-14

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C10200

Patent

active

040790797

ABSTRACT:
A process for the monoacylating of an aromatic primary diamine containing no anionic water-solubilizing group, preferably m-phenylene or p-phenylenediamine, which comprises reacting an acylating agent in aqueous medium with a mineral acid salt, preferably the hydrochloric acid salt, of the diamine wherein the reaction mixture is maintained at a pH of from 1.5 to 3.5 during the addition and reaction of the acylating agent.

REFERENCES:
patent: 3236891 (1966-02-01), Seemuller
patent: 3281467 (1966-10-01), Wilson et al.
patent: 3852058 (1974-12-01), Huffman
patent: 3919269 (1975-11-01), Jaffe et al.
patent: 3919314 (1975-11-01), Marriott
Scott, Standard Methods of Chemical Analysis, D. Van Nostrand, N.Y., N.Y., 5th ed. 1946, vol. 2 pp. 2278-2281.
Roeder et al., J. Org. Chem. 6 (1940) pp. 25-29.

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