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Report | Regular issue | Vol 24, No. 11, 1986, pp.3075-3078
Published online, 1st January, 1970
DOI: 10.3987/R-1986-11-3075
Synthesis of 5H-Dipyrido[1,2-a:3’,2’-e]pyrimidin-5-one and 5-H-Pyrido[3’,2’:5,6]pyrimido[1,2-a]quinazolin-5-ones

Ahmed Kamal,* Maddamsetty Venkateswara Rao, and Pralhard Balvantrao Sattur

*Regional Research Laboratory, Hyderabad 500 007, India

Abstract

α-Amino-N-heteroarenes on cyclocondensation with 2-chloropyridine-3-carboxylic acid chloride afford the title compounds 4 and 7. Although compound 4 is obtained in one-pot while compound 7 is formed via its amide intermediate 6.