Catalytic (asymmetric) methylene transfer to aldehydes
Citation:Piccinini, S. A. Kavanagh, P. B. Connon and S. J. Connon, Catalytic (asymmetric) methylene transfer to aldehydes, Organic Letters, 12, 3, 2010, 608-611
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An investigation into the poor activity of sulfides as catalysts for sulfonium-ylide-mediated methylene transfer to aldehydes has indicated that ylide formation is the problematic catalytic cycle step. Alkylation with traditional electrophiles does not proceed with sufficient efficiency to allow the sulfide to be used catalytically. Methyl triflate rapidly alkylates cyclic thiolanes under mild conditions, allowing their use in efficient aldehyde epoxidation reactions (in conjunction with phosphazene bases) at loadings as low as 10 mol%.
Science Foundation Ireland (SFI)
Highlighted in Synfacts (2010, 349).
Type of material:Journal Article
Series/Report no:Organic Letters
Availability:Full text available
Subject (TCD):Nanoscience & Materials