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.
5,5,7,7-四甲基-3-取代或未取代苯基
呋喃[3,4-e]-
嘧啶类化合物,例如5,7-二氢-5,5,7,7-四甲基-3-(m-
硝基苯基)
呋喃[3,4-e]-
嘧啶,是通过在惰性有机溶剂存在下,在惰性气氛下将2,2,5,5-四甲基-3,4(2H,5H)
呋喃二酮与取代或未取代
苯并咪唑酸
肼反应制备的,并且可用作催眠剂和轻度
安定剂。