Process for the production of (substituted) 2,6-dimethylanilines
申请人:Ciba-Geigy Corporation
公开号:US04188341A1
公开(公告)日:1980-02-12
Aniline derivatives of the formula ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by C.sub.1 -C.sub.2 -alkoxy are produced by reacting a N-(3-pent-2-enyl)-derivative of morpholine, piperidine or pyrrolidine with acrolein in the presence of an inert, aprotic solvent or in the absence of a solvent and heating the reaction product obtained to 100.degree.-400.degree. C. in the presence of a hydrogen-transfer catalyst and in the presence of an amine of the formula R--NH.sub.2, wherein R has the meaning given above.
Process for the preparation of 2,6-dialkyl-N-alkylanilines
申请人:Ciba-Geigy Corporation
公开号:US04183868A1
公开(公告)日:1980-01-15
A process for the preparation of 2,6-dialkyl-N-alkylanilines is disclosed, which process comprises the reaction of a 2,6-dialkylaniline with an alkanol at 200.degree. to 350.degree. C. in the presence of a copper-containing catalyst which contains 0.05 to 10% by weight of palladium or platinum.