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Zirconium catalyzed alkyne dimerization for selective Z-enyne synthesis

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>2012
<mark>Journal</mark>Chemical Communications
Issue number86
Volume48
Number of pages3
Pages (from-to)10609-10611
Publication statusPublished
Original languageEnglish

Abstract

The regioselective head-to-head dimerization of alkynes is catalyzed by a dibenzyl tethered bis(ureate) zirconium precatalyst with aniline as an additive. This system also gives outstanding stereoselectivity to furnish Z-enynes in high yields. A dinuclear reactive intermediate has been characterized, which provides a potential mechanistic rationale for the unexpected regio- and stereoselectivity in this catalytic system.