Ruthenium-catalyzed tandem cross-metathesis/Wittig olefination: generation of conjugated dienoic esters from terminal olefins.

Ruthenium-catalyzed tandem cross-metathesis/Wittig olefination: generation of conjugated dienoic esters from terminal olefins.

Organic letters (2007-04-03)

Ryan P Murelli, Marc L Snapper

ABSTRACT

[reaction: see text] In the presence of ruthenium-based olefin metathesis catalysts and triphenylphosphine, alpha,beta-unsaturated aldehydes can be olefinated with diazoacetates. This ruthenium-catalyzed transformation has been employed in tandem with olefin cross-metathesis to convert terminal olefins into 1,3-dienoic esters in a single operation.

MATERIALI

N° Catalogo

Marchio

Descrizione del prodotto

682365

Sigma-Aldrich

[1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(3-methyl-2-butenylidene)(tricyclohexylphosphine)ruthenium(II), Umicore