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Reactions of cyclopropyl aryl ketones with α-ketoacetic acids catalyzed by C8F17SO3H in fluorous phase?

Organic & Biomolecular Chemistry Pub Date: 2006-10-16 DOI: 10.1039/B610518A

Abstract

In this paper, we successively apply the “fluorous biphase system” (FBS) technique to the reactions of cyclopropyl aryl ketones with α-ketoacetic acids catalyzed by C₈F₁₇SO₃H (30 mol%) using perfluorodecalin (C₁₀F₁₈, cis- and trans-mixture) and DCE as a co-solvent to give the corresponding products 5,6-dihydropyran-2-ones in good yields. Moreover, the reaction system can be performed for several times without reloading the catalyst and the fluorous solvent.

Graphical abstract: Reactions of cyclopropyl aryl ketones with α-ketoacetic acids catalyzed by C8F17SO3H in fluorous phase

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