Studies in the Terpene Series. XXIV. 1 Sodium-catalyzed Double Bonds Migration and Dehydrogenation of d-Limonene, l-α-Phellandrene and of 2, 4 (8)-and 3, 8 (9)-p …

H Pines, HE Eschinazi

Index: Pines; Eschinazi Journal of the American Chemical Society, 1955 , vol. 77, p. 6314,6319

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Citation Number: 65

Abstract

When d-limonene was refluxed in the presence of such as o-chlorotoluene or preferably freshly prepared benzylsodium, or sodium hydride, a reaction took place during which the optical rotation dropped rapidly at first, and then approached zerv exponentially. The drop of optical activity was accompanied by a slow but steady evolution of hy-. drogen until amost 100 mole per cent. of hydrogen