Pd-heteropoly acid as a bifunctional heterogeneous catalyst for one-pot conversion of citronellal to menthol

Rocha KAD; Robles-Dutenhefner PA; Sousa EMB; Kozhevnikova EF; Kozhevnikov IV; Gusevskaya EV

Applied Catalysis A: General, Vol.317, No.2, 171-174, 2007

DOI10.1016/j.apcata.2006.10.019 Export Citation

Pd-heteropoly acid as a bifunctional heterogeneous catalyst for one-pot conversion of citronellal to menthol

Rocha KAD, Robles-Dutenhefner PA, Sousa EMB, Kozhevnikova EF, Kozhevnikov IV, Gusevskaya EV

Pd-H3PW12O40/SiO2 catalyzes the one-pot transformation of (+)-citronellal to menthol via acid-catalyzed cyclization followed by Pd-catalyzed hydrogenation, with 92% yield of menthol at 100% citronellal conversion and 85% stereoselectivity for the desired (-)-menthol. (c) 2006 Elsevier B.V. All rights reserved.

Keywords:citronellal;menthol;heteropoly acid;palladium;bifunctional catalysis