A Conveniet One Step Synthesis Of Pyrazolo[5,4-d] Benzopyranes

A Conveniet One Step Synthesis Of Pyrazolo[5,4-d] Benzopyranes

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Part of #A Conveniet One Step Synthesis Of Pyrazolo[5,4-d] Benzopyranes# :

Publishing year : 2009

Conference : National Symposium on Chemical Engineering

Number of pages : 5

Abstract: Pyrazolo [5,4-d] benzopyranes have been synthesized in one step in a good yield by the reaction of 2-pyridazine-5-ones with orthohydroxybenzalaldehydes in the presence of hydrochloric acid.