N-Heterocyclic Carbene-Initiated α-Acylvinyl Anion Reactivity: Additions of α-Hydroxypropargylsilanes to Aldehydes
- 1 June 2007
- journal article
- letter
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 9 (13), 2581-2584
- https://doi.org/10.1021/ol0710515
Abstract
Highly substituted α,β-unsaturated ketones are prepared by the N-heterocyclic carbene-initiated addition of α-hydroxypropargylsilanes to aldehydes. This strategy serves as a highly efficient alternative to the standard Morita−Baylis−Hillman (MBH) approaches for these types of compounds. In contrast to the MBH reaction, different substitution in the β-position of the product (R1) can be accommodated in moderate to excellent yields with a high degree of control over the resulting alkene.Keywords
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