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Communication | Regular issue | Vol 4, No. 5, 1976, pp.977-980
Published online, 1st January, 1970
DOI: 10.3987/R-1976-05-0977
A Disproportionation of 6-Amino-5-benzylindeneamino-1,3-dimethyluracils in Formamide. Formation of 6,7-Diaryl-1,3-Dimethyllumazines and Theophylline

Masatsugu Higuchi, Tetsuya Nagamura, and Fumio Yoneda*

*Faculty of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-hon-machi, Kumamoto 862-0973, Japan

Abstract

Heating of 6-amino-5-benzylideneamino-l,3-dimethyluracils in formamide led to the formation of the corresponding 6,7-diaryl-1,3-dimethyllumazines and theophylline.