Brief description of the drawings for the preparation of n, n - dimethyl - alkylamines by catalytic hydrogenation of n, n - dimethyl - alkylamides

摘要

PCT No. PCT/FR89/00352 Sec. 371 Date Feb. 26, 1990 Sec. 102(e) Date Feb. 26, 1990 PCT Filed Jul. 5, 1989 PCT Pub. No. WO90/00539 PCT Pub. Date Jan. 25, 1990.The process of making N,N-dimethyl-N-alkylamines containing less than 1% of alkanols by hydrogenation of N,N-dimethylalkylamines on a catalyst of the copper chromite type containing an amount of manganese oxide effective to keep the alkanol level below 1%.