Microwave-assisted reactions: Part 2Part 1: ref. 1. One-pot synthesis of pyrimido[1,2-a]pyrimidines

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Abstract
A simple route for the synthesis of pyrimido[1,2-a]pyrimidines by condensation of 2-aminopyrimidine 1, aromatic aldehydes 2 and active methylene reagents 3 under microwave irradiation is reported.