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Communication | Regular issue | Vol 2, No. 4, 1974, pp.451-456
Published online, 1st January, 1970
DOI: 10.3987/R-1974-04-0451
A Novel Synthesis of Pyrimidines. I. Cyclization of Cyanoacetylcynamides and Their Derivatives

Tadamasa Hirayama,* Masahiro Kamada, Hideaki Tsurumi, and Masataka Mimura

*Central Research Laboratoeies, Daiichi Pharmaceutical Co., Ltd., 16-13, Kitakasai 1-chome, Edsogawa-ku, Tokyo 134, Japan


Cyclization reaction of cyanoacetylcyanamides (III) and their derivatives (V) has been found to give three types of halogeno- and alkoxy-pyrimidines (IV,VI,VII).