Conjugate additions to alkynylalkoxycarbenemetal (Cr or W) complexes

Amadeu Llebaria, Josep M. Moretó, Susagna Ricart, Josep Ros, Josep M. Viñas, Ramón Yáñez

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)

Abstract

The addition of different nucleophilic compounds (aliphatic and aromatic alcohols, thiols and phosphines) to alkynylalkoxycarbene complexes has been studied. The reaction with smaller nucleophiles proceeds readily and regioselectively at the β-carbene position. With more substituted nucleophiles the reaction rate slowed down considerably. Addition of a catalytic amount of DBU (1,8-di-azabicyclo[5.4.0]undec-7-ene]) speeded up the reaction and improved the E/Z ratio. © 1992.
Original languageEnglish
Pages (from-to)79-90
JournalJournal of Organometallic Chemistry
Volume440
Issue number1-2
DOIs
Publication statusPublished - 17 Nov 1992

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