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  • Cross-metathesis between alpha-methylene-gamma-butyrolactone and olefins: a dramatic additive effect.

Cross-metathesis between alpha-methylene-gamma-butyrolactone and olefins: a dramatic additive effect.

Organic letters (2007-04-05)
Joëlle Moïse, Stellios Arseniyadis, Janine Cossy
ZUSAMMENFASSUNG

[reaction: see text] Olefin cross-metathesis between alpha-methylene-gamma-butyrolactone and terminal olefins is described. Moderate to excellent yields of alpha-alkylidene-gamma-butyrolactones were obtained with high E-stereoselectivity in the presence of low catalyst loading in refluxing CH2Cl2. In addition, the use of various additives was found to have a dramatic effect on the efficiency of the cross-metathesis (CM) process by circumventing the formation of the isomerized byproduct.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

Sigma-Aldrich
α-Methylen-γ-butyrolacton, 97%