Hydrogenation of dehydrolinalool over Pd-containing polymer catalyst


Terpenic acyclic tertiary' acetylene alcohol dehydrolinatool (DHL, 3,7-dimethyl-3-hydroxy-6-octaen-l-yne) i s used for linalool (LN, 3,7-dimethyl-3-hydroxy-1,6-octadiene) synthesis by hydrogenation of the triple bond to a double bond. Linalool is an aromatic substance of the terpene series; these compounds are used in the production of cosmetics and perfume compositions [1]. DHL hydrogenation over metals of group Vlll is known from the literature [2]. The maximum selectivity is possessed by Pd catalyst deposited on alumina (0.5% Pd/7-Ab_O3) and modified by heavy metal salts and organic and inorganic bases [21. Data are available on the hydrogenation of the acetylene alcohol triple bond to a double bond over Pal-containing polymer catalyst [3]. Palladium polymer catalysts, which can be also used for linalool preparation, offer a number of advantages compared to conventional Pd / AI203 catalysts: high mechanical strength and absence of modifying additives chemical poisons. In this paper we study the optimum conditions for dehydrolinalool hydrogenation over Pd-containing polymer catalyst and the kinetics and mechanism of this reaction.

DOI: 10.1007/BF02219394

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@article{Matveeva2005HydrogenationOD, title={Hydrogenation of dehydrolinalool over Pd-containing polymer catalyst}, author={Valentina G. Matveeva and P. M. Sul'man and L. M. Bronshtein and T. V. Ankudinova and E. Sh. Mirzoeva and Alexander I Sidorov and P. M. Valetskii}, journal={Pharmaceutical Chemistry Journal}, year={2005}, volume={29}, pages={361-363} }