Alkylation and aralkylation of aromatic amines

Details Alkylation and aralkylation of aromatic amines Alkylation and aralkylation of aromatic amines

1982-06-10

1984-03-13

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564307, 564308, C07C 8524

Patent

active

044369360

ABSTRACT:
Compounds having the formula I ##STR1## as well as salts or metal salt complexes thereof, in which formula I n, R.sub.1, R.sub.2 and Z have the meanings given in claim 1, can be prepared under mild reaction conditions by reacting 1.0 mole of an aromatic amine having the formula II ##STR2## with up to three moles of an alkylating agent (III) capable of introducing a residue Z into the benzene ring of an amine (II) at a position ortho or para to the NH.sub.2 group, the reaction being effected at elevated temperature in the presence of an acid catalyst in an aqueous acid medium, containing at least 30% by weight of water, based on the acid, and optionally converting compounds (I) into salts or metal salt complexes. The compounds (I) so produced are useful in the production of intermediates for dyestuffs, additives for plastics, rubbers, oils, etc., and in the production of biologically active compounds.

REFERENCES:
patent: 2285243 (1942-06-01), Weinmayr
patent: 2762845 (1956-09-01), Stroh et al.
patent: 2814646 (1957-11-01), Koikn et al.
Olah, Friedel-Crafts and Related Reactions, vol. 2, Interscience Publishers, N.Y., pp. 576-577 (1964).
Hickenbottom, J. Chem. Soc., pp. 404-407 (1937).

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