Mitsubishi Gas Chemical Company, Inc.

Hidetaka Kiga

Susumu Naito

Takeo Ikarashi

Yuzi Onda

Kozo Sano

Koichi Abe

Tetsuo Aoyama

Shigeru Horie

Kinichi Mizuno

A process for producing an acyloxynaphthoic acid represented by the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom or an alkyl group, which comprises

Process for producing acyloxynaphthoic acids

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.

Process for producing dimethyl formamide

Dimethyl formamide with a high purity is produced in a high yield and a high selectivity by reaction of a mixture of monomethylamine and/or monomethyl formamide and trimethylamine, or the mixture further containing dimethylamine with carbon monoxide in the presence of metallic iron or an iron compound as a catalyst and hydrogen gas at a volumic rate of H.sub.2 /CO of 0.05-3.

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Niigata, Japan

Hidetaka Kiga