Meldrum's acids as acylating agents in the catalytic intramolecular Friedel-Crafts reaction

E Fillion, D Fishlock, A Wilsily…

Index: Fischer, Walter; Kvita, Vratislav Helvetica Chimica Acta, 1985 , vol. 68, p. 854 - 859

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Citation Number: 143

Abstract

... Volume: Page: ... dehydrative acylation with carboxylic acids have been promoted by polyphosphoric acid, 11 methanesulfonic acid, HF, or dehydrating agents such as P 2 O 5 ... a A 68% yield was obtained in CH 3 CN (2 h, 8 mol % catalyst), and a 72% yield in 1,2 ...