Preparation of aromatic diamines

Details Preparation of aromatic diamines Preparation of aromatic diamines

1978-06-22

1979-06-05

Hines, Robert V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260566R, C07C 8518

Patent

active

041573439

ABSTRACT:
Aromatic diamines are prepared by reacting an alkyl formimine which has been obtained by the reaction of an amine possessing a primary or secondary alpha carbon atom with formaldehyde with an aromatic amine in an anhydrous acidic medium. The reaction is usually effected at ambient temperatures and atmospheric pressures and is exemplified by reacting n-hexylformimine with N,N-dimethylaniline in an anhydrous trifluoroacetic acid medium to form p-dimethylamino-N-n-hexylbenzylamine.

REFERENCES:
patent: 2750416 (1956-06-01), Exner et al.

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