Process of producing N-alkylacetamides.

摘要

There is disclosed a process of producing an N-alkylacetamide of the general formula (III): <CHEM> wherein X<1>, X<2> and X<3> are the same or different and are independently hydrogen, lower alkyl, lower alkoxy, lower alkenyl, halogen or trifluoromethyl; R<1> and R<2> are the same or different and are independently lower alkyl; and @ represents a chemical bond of E- or Z-configuration, or a mixture of these configurations, which includes the steps of: (a) reacting an acetonitrile of the general formula (I): <CHEM> wherein X<1>, X<2>, X<3>, R<1> and @ are each as defined above, with an alkylamine of the general formula (IV): R<2>-NH2 (IV> wherein R<2> is as defined above, to give an N-alkylacetamidine of the general formula (II): <CHEM> wherein X<1>, X<2>, X<3>, R<1>, R<2> and @ are each as defined above; and (b) reacting the N-alkylacetamidine (II) with a nitrite derivative in the presence of an acid.