And itaconic acid or itaconic acid derivatives to produce the 1,3- and 1,4-alkyl-methylpyrrolidone mixture of the primary amine

摘要

The present invention contains a primary amine of formula and itaconic acid derivatives or itaconic acid (I), the molar ratio of itaconic acid derivative or a primary amine to itaconic acid is 0.5: 1 to 20: A mixture is in the range, for itaconic acid derivative used or itaconic acid mixture, the use of 50 mol% or less, 4-carboxy pyrrolidone, Equations (II) of (II) 4- carboxy pyrrolidone derivatives, and is characterized by containing formula (III) 4-carbamide pyrrolidone, [wherein, R, or a saturated aliphatic group, linear or branched having 1 to 24 carbon atoms represents a saturated alicyclic group having 3 to 24 carbon atoms or] on mixture. Further use of the mixtures according to the invention for producing alkyl 1,3-methylpyrrolidone and / or 1,4-alkyl-methylpyrrolidone, and 1,3-alkyl-methylpyrrolidone and / or the present invention include 1,4 alkyl relates to a process to produce methyl pyrrolidone. And / or 1,4-alkyl-methylpyrrolidone, and contains a 1,3-alkyl-methyl pyrrolidine and 1,3-alkyl-methylpyrrolidone, the present invention is 10 to 10 parts of 1,3-alkyl methyl pyrrolidine addition, the mixture is in the range of 000ppm, and contain 1,3-alkyl-methylpyrrolidone and 1,4-alkyl-methylpyrrolidone, the molar ratio of the alkyl 1,3-methylpyrrolidone to-alkyl 1,4-methylpyrrolidone 1: 1 on the mixture, characterized in that it is in the range of 1: 10.