申请人:DowElanco
公开号:US05688953A1
公开(公告)日:1997-11-18
3,3,5-Trichloroglutarimide is prepared by combining 4-cyano-2,2,4-trichlorobutanoyl chloride with water in an inert organic solvent at a temperature between about 20.degree. C. and about 50.degree. C. to obtain a mixture of 3,3,5-trichloroglutarimide and 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one. The 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one is then heated in the presence of water and inert organic solvent to between about 90.degree. C. and about 100.degree. C. to convert the 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one to 3,3,5-trichloroglutarimide.
3,3,5-三氯戊二酰氯和水在惰性有机溶剂中混合,在约20℃到50℃的温度下反应得到3,3,5-三氯戊二酰亚胺和3,3,5,6-四氯-5,6-二氢吡啶-2-酮的混合物。然后,在水和惰性有机溶剂的存在下,将3,3,5,6-四氯-5,6-二氢吡啶-2-酮加热到约90℃到100℃,将其转化为3,3,5-三氯戊二酰亚胺。