N-(1-hydroxyethyl) carboxamide compound and process for producing same
View Patent ↗The present invention relates to an N-(1-hydroxyethyl)carboxamide compound represented by formula (1) (in the formula, R A and R B represent independently from each other a hydrogen atom or an alkyl group having 1 to 4 carbon atoms except for a case where R A and R B represent a hydrogen atom at the same time) and a method for producing the same; a method for producing an N-(1-alkoxyethyl)carboxamide compound; a method for producing an N-vinyl carboxylic acid amide compound; and a method for producing an N-vinyl carboxylic acid amide (co)polymer. An N-(1-alkoxyethyl)carboxamide compound can be obtained by reacting N-(1-hydroxyethyl)carboxamide compound with alcohol in the presence of an acid catalyst, and an N-vinyl carboxylic acid amide compound, which is a monomer of the N-vinyl carboxylic acid amide (co)polymer, can be obtained by thermally decomposing or catalytically decomposing the N-(1-alkoxyethyl)carboxamide compound.
1. A method for producing an N-(1-hydroxyethyl)carboxamide compound represented by formula (1)
(wherein R A and R B are independently selected from the group consisting of a hydrogen atom, methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, s-butyl group and t-butyl group, provided that R A and R B cannot simultaneously be a hydrogen atom), comprising adding N-(1-hydroxyethyl)carboxamide compound as a target compound to a reaction solvent comprising methylcyclohexane, and reacting acetaldehyde and carboxylic acid amide represented by formula (2)
(wherein R A and R B are independently selected from the group consisting of a hydrogen atom, methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, s-butyl group and t-butyl group, provided that R A and R B cannot simultaneously be a hydrogen atom) in the presence of a base, the solvent and the N-(1-hydroxyethyl)carboxamide compound.
2. The method for producing the N-(1-hydroxyethyl)carboxamide compound as claimed in claim 1 , wherein the base is bicarbonate.