METHOD OF PRODUCING N,N-DIMETHYLACETAMIDE Russian patent published in 2012 - IPC C07C231/02 C07C233/03 

FIELD: chemistry.

SUBSTANCE: invention relates to a novel method for synthesis of N,N-dimethylacetamide, which is widely used as a solvent in different fields, involving reaction of ethyl acetate (EA) and N,N-dimethylamine (DMA) in the presence of polyethylene polyamines (PEPA), having formula NH₂[(CH₂CH₂)NH]_n-1CH₂CH₂NH₂, where n = 2-4, as a catalyst, where separate compounds of this group or their mixtures can be used.

EFFECT: high output of the end product (dimethylacetamide) of high quality (more than 99,9% content of basic substance) due to a simpler step for separating the catalyst from the reaction products.

3 cl, 16 ex, 1 tbl