专利检索 ap:"Gregory Benjamin Bennett" 第 1 页

1.

发明授权
Process for the preparation of furo(3,4-e)-as-triazines 失效
标题翻译：制备FURO（3,4-E）-AS-TRIAZINES的方法

公开(公告)号：US3962240A

公开(公告)日：1976-06-08

申请号：US575525

申请日：1975-05-08

申请人： Gregory Benjamin Bennett

发明人： Gregory Benjamin Bennett

IPC分类号： C07D491/04 , C07D253/08

CPC分类号： C07D491/04 , Y10S514/923

摘要： 5,5,7,7-tetramethyl-3-substituted or unsubstituted-phenylfuro[3,4-e]-as-triazines, e.g., 5,7-dihydro-5,5,7,7-tetramethyl-3-(m-nitrophenyl)furo[3,4-e]-as-triazine, are prepared by reacting a 2,2,5,5-tetramethyl-3,4(2H,5H)furandione with substituted or unsubstituted benzimidic acid hydrazide under an inert atmosphere in the presence of an inert organic solvent and are useful as sleep inducers and minor tranquilizers.