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US 4,229,373 AGranted
Process for producing dimethyl formamide
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsKozo Sano, Hidetaka Kiga, Takeo Ikarashi
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Abstract
Dimethyl formamide is produced in a considerably high yield by reaction of monomethylamine and triethylamine, or monomethylamine, trimethylamine and dimethylamine with carbon monoxide in the presence of metallic iron or an iron compound as a catalyst, while adding 2-20 moles of free water per gram-atom of iron of the catalyst to the reaction system.
Claims16
In a process for producing dimethyl formamide by reacting:
- (a) monomethylamine and trimethylamine, or (b) monomethylamine, trimethylamine and dimethylamine with carbon monoxide in the presence of metallic iron or an iron compound as a catalyst, the improvement comprising adding free water to the reaction system.
Dependencies are inferred from the claim text.