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J Org Chem. 2006 Jan 6;71(1):352-5.

Expanding the scope of Lewis acid catalysis in water: remarkable ligand acceleration of aqueous ytterbium triflate catalyzed Michael addition reactions.

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1
Department of Organic Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.

Abstract

[reaction: see text] Significant rate acceleration of metal-catalyzed Michael addition reactions in water was observed upon addition of small, dibasic ligands. Ytterbium triflate and TMEDA was the most effective combination leading to a nearly 20-fold faster reaction than in the absence of ligand.

PMID:
16388657
DOI:
10.1021/jo051540n
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