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■ Efficient Synthesis of 1,1‘-Methylenebis-1H-pyrrole Derivatives

Carlos Gonzalez R. and Robert Greenhouse*

*División de Investigación, Syntex S.A. de C.V., Apartado Postal 272 (CIVAC), Jiutepec, Morelos, México, cp 62500, Mexico

Abstract

The title compounds may be prepared efficiently by the reaction of methylene chloride with the pyrrolyl anion generated under phase-transfer conditions. The spectral characteristics of these relatively unknown compounds are discussed.