Bulletin of the Chemical Society of Japan

Study on oxazolopyrimidines. VI. Formation of 3-substituted xanthines via 7 (6H)-iminooxazolopyrimidines

Y Ohtsuka

文献索引：Ohtsuka,Y. Bulletin of the Chemical Society of Japan, 1973 , vol. 46, p. 506 - 509

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被引用次数: 16

摘要

The condensation of several primary amines with 4-cyano-5-dialkoxymethylenaminooxazole gave 6-substituted 5-alkoxy-7 (6H)-immooxazolo [5, 4-d] pyrimidines. These compounds were converted into 3-substituted xanthines by treatment with aqueous alkali or by heating in formamide. The present reaction was compared with an analogous reaction, formation of 9-substituted hypoxantines via 7-aminooxazolo [5, 4-d] pyridimine derivatives, and the ...