A convenient, one-pot synthesis of 1,9-dicyano-dipyrromethanes and a difurylmethane - Concepedia

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A convenient, one-pot synthesis of 1,9-dicyano-dipyrromethanes and a difurylmethane

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1994

Year

Ross W. Boyle, Veranja Karunaratne, Ayub Jasat, Eduardo K. Mar, David Dolphin

Combinatorial ChemistryDerivative (Chemistry)EngineeringPorphyrin-like MacrocyclesHeterocyclicOne-pot SynthesisOrganic Chemistry1,9-Dicyano DerivativesChemistryHeterocycle ChemistryChemical DerivativeBiomolecular Engineering

Abstract

A range of 1,9-dicyano-dipyrromethanes were prepared from 1,9-dicarboxy- or 1,9-diunsubstituted-dipyrromethanes by decarboxylation (of the acids) and treatment with chlorosulfurylisocyanate in DMF; a dicyanodifurylmethane was prepared similarly. These 1,9-dicyano derivatives are important as precursors to "expanded" porphyrin-like macrocycles.