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Communication | Regular issue | Vol 20, No. 5, 1983, pp.761-764
Published online, 1st January, 1970
DOI: 10.3987/R-1983-05-0761
Pyrylium Salts from Friedel-Crafts Acylation of Isoparaffins: Isooctane

Michel Arnaud, Annette Pedra, Claude Erre, Christian Roussel, and Jacques Metzger

*Faculte des Sciences de St-Jerome , E.N.S.S.P.I.C.A.M., Avenu Escadrille Normandie-Niemen, 13397 Mareseille Cedex, France


It is shown that acylation of isooctane in AlCl3/CHCl3 medium leads to 2,6-dialkyl-4-methylpyrylium salts, unsaturated ketones and isobutane. Compared to acylation of other isoparaffins, better yields are obtained due to an autocatalytic process.