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Communication | Regular issue | Vol 4, No. 11, 1976, pp.1759-1764
Published online, 1st January, 1970
DOI: 10.3987/R-1976-11-1759
Dehydrogenative Cyclization of 6-Amino-5-benzylideneaminopyrimidines to Purines with Diethyl Azodicarboxylate

Fumio Yoneda,* Masatsugu Higuchi, Keitaro Senga, Kayoko Shimizu, and Sadao Nishigaki

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


The treatment of 6-amino-5-benzylideneaminopyrimidines with diethyl azodicarboxylate (DAD) gave the corresponding purines in essentially quantitative yields.