Abstract: The present invention relates to a catalyst which comprises a vanadium oxide, a chromium oxide, a molybdenum oxide and a boron oxide supported on a silica carrier. This catalyst is suitable for use in the production of aromatic nitriles from alkyl-substituted aromatic compound by the catalytic reaction of a gas mixture containing an alkyl-substituted aromatic compound, ammonia and oxygen or a gas containing molecular oxygen over a catalyst. The present invention further relates to a process for producing the aromatic nitriles using said catalyst.

Abstract: The present invention relates to a catalyst which comprises a vanadium oxide, a chromium oxide, a molybdenum oxide and a boron oxide supported on a silica carrier. This catalyst is suitable for use in the production of aromatic nitriles from alkyl-substituted aromatic compound by the catalytic reaction of a gas mixture containing an alkyl-substituted aromatic compound, ammonia and oxygen or a gas containing molecular oxygen over a catalyst. The present invention further relates to a process for producing the aromatic nitriles using said catalyst.

Abstract: 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(a) oxidizing an acylalkylnaphthalene represented by the general formula ##STR2## wherein R.sub.1 is as defined, and R.sub.2 represents a lower alkyl group, with a peroxide, and(b) oxidizing the resulting acyloxyalkylnaphthalene represented by the general formula ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, with molecular oxygen in an organic solvent in the presence of a catalyst comprising a bromine compound and a cobalt compound.

Abstract: 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(a) oxidizing an acylalkylnaphthalene represented by the general formula ##STR2## wherein R.sub.1 is as defined, and R.sub.2 represents a lower alkyl group, with a peroxide, and(b) oxidizing the resulting acyloxyalkylnaphthalene represented by the general formula ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, with molecular oxygen in an organic solvent in the presence of a catalyst comprising a bromine compound and a cobalt compound.

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.

Abstract: Dimethyl formamide is produced in high yield with high selectivity by reaction of monomethyl formamide with trimethylamine and carbon monoxide in the presence of a catalyst such as halogen elements, halides, inorganic acids, solid acids and metal carbonyls at a temperature of 150.degree. to 300.degree. C under a pressure of 20 kg/cm.sup.2 gage or higher.