Palladium-Catalyzed Hydrostannylation of α-Heteroalkynes and Alkynyl Esters in Ionic Liquids

✍ Scribed by Mingzhong Cai; Yongguang Wang; Wenyan Hao

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 142 KB
• Volume: 2008
• Category: Article
• ISSN: 1434-193X
• DOI: 10.1002/ejoc.200701204

✦ Synopsis

Abstract

Palladium‐catalyzed hydrostannylation reactions of α‐heteroalkynes and alkynyl esters were achieved with high regio‐ and stereoselectively in the ionic liquid 1‐butyl‐3‐methylimidazolium hexafluorophosphate ([bmim][PF~6~]) at 60 °C in high yields. Our system not only avoids the use of highly toxic benzene or volatile THF as solvent but also solves the basic problem of palladium catalyst reuse.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)