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Conjugate propargylation of α,β-unsaturated lactones: a solution via 1,4-addition of (Z)-2-ethoxyvinyl anion

✍ Scribed by Samir Bennabi; Kesavaram Narkunan; Laurence Rousset; Denis Bouchu†; Marco A Ciufolini

Book ID: 104211056
Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 114 KB
Volume: 41
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)01506-9

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✦ Synopsis

Conjugate addition of (Z)-2-ethoxyvinyl anion to a,b-unsaturated lactones is best effected via Noyoritype organocopper reagents. The resulting adducts may be advanced to b-propargyllactones or utilized in the preparation of functionalized pyridines.

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