Citation: N. Brine et A. Foucaud, REGIOSELECTIVE RING-OPENING OF 3-ARYL-2-CYANO-2-(METHOXYCARBONYL)OXIRANES WITH METAL-HALIDES AND SILICA-GEL-SUPPORTED METAL-HALIDES - SYNTHESIS OF SUBSTITUTED BUT-3-EN-4-OLIDES, Bulletin de la Societe chimique de France, 130(5), 1993, pp. 620-624