Preparation of tertiary amines

Details Preparation of tertiary amines Preparation of tertiary amines

1993-09-07

1999-07-20

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

C07C20937

Patent

active

059257938

ABSTRACT:
A process for the preparation of dialkylamines of the general formula I, ##STR1## in which R.sup.1, R.sup.2, and R.sup.3 denote C.sub.1 -C.sub.12 alkyl, by the reaction of a dialkylamine of the general formula II ##STR2## in which R.sup.1 and R.sup.2 denote C.sub.1 -C.sub.12 alkyl, with alcohols R.sup.3 --OH in the presence of a (copper chromite/alkaline-earth metal chromite)-containing hydrogenation/dehydrogenation catalyst, in which the reaction is carried out in the liquid phase over a fixed bed catalyst in the presence of the water formed during the reaction at temperatures ranging from 180.degree. to 210.degree. C. and pressures ranging from 40 to 120 bar.

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patent: 4851580 (1989-07-01), Mueller et al.
Patent Abst. of Japan, vol. 9, No. 283, Nov. 9, 1985.
Houben-Weyl, "Methoden der Organischen Chemie", vol. IV, 1955.

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