Alkylation and aralkylation of aromatic amines

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

C - Chemistry, Metallurgy

07

C

260/430, 260/600

C07C 209/68 (2006.01)

Patent

CA 1185612

Abstract of the Disclosure Compounds having the formula I Image (I) as well as salts or metal salt complexes thereof, in which formula I n, R1, R2 and Z have the meanings given in claim l, can be prepared under mild reaction conditions by reacting an aromatic amine having the formula II Image (II) with up to three moles of an alkylating agent (III) capable of intro- ducing a residue Z into the benzene ring of an amine (II) at a posi- tion ortho or para to the NH2 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 pro- duction of intermediates for dyestuffs, additives for plastics, ubbers, oi1s, etc., and in the production of biologically active com- pounds.

405367

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