Free accessResearch articleFirst published online 1999-3
Studies on Uracils: Synthesis of Tetrazolo[4’,5':1,6]pyrido[2,3- d ]pyrimidines by the Action of Cyano Stabilised Carbanions on 6-Azido-5-formyluracils †
6-Azido-5-formyluracils 2 undergo base catalysed condensation with cyanocarbanions to yield tetrazolo[4’,5':1,6]-pyrido[2,3-d]pyrimidines 4 in good yields.
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