Tetrahedron letters

Ultrasonically improved reductive properties of an aqueous Zn NiCl 2 system-2. Regioselectivity in the reduction of (−)-carvone

C Petrier, JL Luche

Index: Petrier, Christian; Luche, Jean-Louis Tetrahedron Letters, 1987 , vol. 28, # 21 p. 2351 - 2352

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Citation Number: 38

Abstract

While the previously described reductive system ZnNiCl 2 leads to the non-selective hydrogenation of the two olefinic bonds of (−)-carvone , the two selective hydrogenation products (+)-dihydrocarvone and carvotanacetone are obtained in good yield with the same reagent under modified experimental conditions. ... According to experimental conditions, Selective hydrogenation of (−)-carvone is obtained with a Zn-Nicl 2 System. ... For the general procedure, see the accompanying ...