The selectivity of Cu/Al2O3 under very mild catalytic hydrogenation conditions can be tuned only by switching the solvent. Geraniol can be converted in a one-pot one-step process into a mixture of citronellol and menthol in hydrocarbon solvents or reduced to citronellol with 98% selectivity in 2-propanol without any additive. Both reactions can be applied to essential oils or synthetic mixtures containing geraniol, citronellal and nerol.
Tuning selectivity in terpene chemistry: Selective hydrogenation versus cascade reactions over copper catalysts / F. Zaccheria, N. Ravasio, A. Fusi, M. Rodondi, R. Psaro. - In: ADVANCED SYNTHESIS & CATALYSIS. - ISSN 1615-4150. - 347:9(2005), pp. 1267-1272.
Tuning selectivity in terpene chemistry: Selective hydrogenation versus cascade reactions over copper catalysts
F. ZaccheriaPrimo
;A. Fusi;
2005
Abstract
The selectivity of Cu/Al2O3 under very mild catalytic hydrogenation conditions can be tuned only by switching the solvent. Geraniol can be converted in a one-pot one-step process into a mixture of citronellol and menthol in hydrocarbon solvents or reduced to citronellol with 98% selectivity in 2-propanol without any additive. Both reactions can be applied to essential oils or synthetic mixtures containing geraniol, citronellal and nerol.
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