Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-12-22
1980-08-19
Demers, Arthur P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260562R, C07C10336
Patent
active
042183987
ABSTRACT:
Dimethylformamide mg.multidot.produced by reaction of monomethylamine and trimethylamine at a molar ratio of trimethylamine to monomethylamine of 0.1-10, with carbon monoxide in the presence of 1-500 mg. atom of at least one of iodine, bromine, iodides and bromides as a catalyst in term of halogen per one mole of raw material methylamines at a temperature of 100.degree.-350.degree. C. under a pressure of at least 50 kg/cm.sup.2 gage. Dimethylformamide is produced in a very high yield with a high selectivity from monomethylamine and trimethylamine having less demand among three species of methylamines formed from methanol and ammonia.
REFERENCES:
patent: 2677706 (1954-05-01), Giachinu
patent: 3099689 (1963-07-01), Cragg
patent: 3530182 (1970-09-01), Haynes
Aliev et al., Chem. Abstracts 57 (1962), 8413f.
Beckwith, The Chemistry of Amides, Interscience Publishers N.Y., N.Y. 1970, p. 118.
Aoyama Tetsuo
Kato Kumiko
Mizuno Kinichi
Onda Yuzi
Saito Masao
Demers Arthur P.
Mitsubishi Gas Chemical Company Inc.
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