申请人:Sumitomo Chemical Company, Limited
公开号:US05780628A1
公开(公告)日:1998-07-14
A process for producing an dioxoquinazoline of following formula (II): ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group, an aralkyl group, an alkoxy group, an alkoxylcarbonyl group or a group represented by YNR.sub.3 R.sub.4, wherein Y represents a direct bond, a lower alkylene group or a carbonyl group, and R.sub.3 and R.sub.4 independently represent a lower alkyl group or N, R.sub.3 and R.sub.4 may bond together to form a five- or six-membered heterocycle which comprises reacting an anthranylamide of formula (I): ##STR2## wherein X, R.sub.1 and R.sub.2 are as defined above.
生产二氧喹啉的方法如下所示(II)的化学式:##STR1## 其中R.sub.1和R.sub.2独立地代表氢原子、卤素原子、硝基、低烷基、芳基烷基、烷氧基、烷氧羰基或由YNR.sub.3 R.sub.4表示的基团,其中Y代表直链键、低烷基烯基或羰基,而R.sub.3和R.sub.4独立地代表低烷基或N,R.sub.3和R.sub.4可以结合形成一个五元或六元杂环,其包括反应式(I)的蒽酰胺:##STR2## 其中X、R.sub.1和R.sub.2如上定义。