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Short Paper | Regular issue | Vol 89, No. 6, 2014, pp.1463-1471
Published online, 2nd May, 2014
DOI: 10.3987/COM-14-12977
A Facile Synthesis and Ring-Opening Reactions of Novel 2-Ferrocenyl-3,4-dihydropyrans

Yuying Du, Hui Qiao, Limin Han,* Ning Zhu, and Quanling Suo

*Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, China

Abstract

A series of novel 2-ferrocenyl-3,4-dihydropyrans were synthesized in good to excellent yields through three-component reaction of vinylferrocene, 1,3-dicarbonyl compound and formaldehyde near room temperature under catalyst-free conditions. The obtained ferrocenyl dihydropyrans can also react readily with indole in the presence of alum, providing a ring-opening product in high yield, and this result opens an effective way to access a new class of complex ferrocenyl derivatives.