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Short Paper | Regular issue | Vol 85, No. 5, 2012, pp.1187-1195
Published online, 3rd April, 2012
DOI: 10.3987/COM-12-12457
Facile Synthesis of 2,3-Disubstituted Pyrroles from 2-Substituted 1-Pyrrolines

Yurie Fujiwara, Mitsunori Oda,* Taku Shoji, Takako Abe, and Shigeyasu Kuroda

*Department of Chemistry, Faculty of Science, Shinshu University, Asahi, Matsumoto 390-8621, Japan


2-Substituted-1-pyrrolines react with various arylaldehyde acetals in the presence of a Lewis acid and base to give 2-substituted 3-arylmethylidene-1-pyrrolines, which are transformed to 2,3-disubstituted pyrroles by base-catalyzed double-bond isomerization.