Ruthenium catalysed formation of 2-alkoxy-5-methylenetetrahydropyrans

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Sylvie Dérien, Beatriz Gomez Vicente and Pierre H. Dixneuf


Abstract

The regioselective carbon–carbon coupling of prop-2-yn-1-ols with allyl alcohol is achieved in the presence of the ruthenium(II) catalyst RuCl(cod)(C5Me5) and leads to either 2-hydroxy- or 2-allyloxy-5-methylenetetrahydropyrans.


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