申请人:——
公开号:US20010023297A1
公开(公告)日:2001-09-20
A 6-aminocarbonylmethyl-4H-2,3-dioxin-4-one compounds can be produced by reacting a 6-halomethyl-4H-2,3-dioxin-4-one compound with a primary or secondary amine and carbon monoxide. The reaction may be carried out in the presence of a catalyst comprising a platinum group metal. 3-oxopentanedicarboxylic acid monoamides and 3-oxopentanedicarboxylic acid amide esters can be are produced by reacting 6-aminocarbonylmethyl-4H-2,3-dioxin-4-one compound with an alcohol or water. Using such intermediates, 6-aminocarbonylmethyl-4H-2,3-dioxin-4-one compound, 3-oxopentanedicarboxylic acid amide esters can provide in an easy and simple and efficient manner.
6-氨基甲酰基-4H-2,3-二氧杂环戊酮化合物可以通过将6-卤甲基-4H-2,3-二氧杂环戊酮化合物与一次或二次胺和一氧化碳反应来制备。反应可以在铂族金属催化剂的存在下进行。通过将6-氨基甲酰基-4H-2,3-二氧杂环戊酮化合物与醇或水反应,可以生产3-氧代戊二酸单酰胺和3-氧代戊二酸酰胺酯。使用这些中间体,可以以简单高效的方式提供6-氨基甲酰基-4H-2,3-二氧杂环戊酮化合物和3-氧代戊二酸酰胺酯。