ChemInform Abstract: Furan Ring Opening—Indole Ring Closure: SnCl₂‐Induced Reductive Transformation of Difuryl(2‐nitroaryl)methanes into 2‐(2‐Acylvinyl)indoles.

Abstract

Furan Ring Opening-Indole Ring Closure: SnCl 2 -Induced Reductive Transformation of Difuryl(2-nitroaryl)methanes into 2-(2-Acylvinyl)indoles. -The reaction proceeds via reductive furan ring opening followed by indole ring closure. It is shown, that the corresponding bisthienylmethanes fail to undergo an analogous recyclization and are transformed into thienylaminomethanes (XIII). -(UCHUSKIN, M. G.; MOLODTSOVA, N. V.; ABAEV, V. T.; TRUSHKOV, I. V.; BUTIN*, A. V.; Tetrahedron 68 (2012) 22, 4252-4258, http://dx.