Synthesis of Benzopyranophenazines via Isocyanide-Based Three-Component Reactions
Received02 Nov 2011
Accepted15 Jan 2012
Benzo[a]pyrano[2,3-c]phenazines were synthesized in good yields by a three-component reaction of benzo[a]phenazin-5-oles, isocyanides and dialkyl acetylendicarboxylates In refluxing ethanol.
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