One-step microwave-assisted asymmetric cyclisation/hydrogenation of citronellal to menthols using supported nanoparticles on mesoporous materials

…, JM Campelo, R Luque, AA Romero

Index: Balu, Alina Mariana; Campelo, Juan Manuel; Luque, Rafael; Romero, Antonio Angel Organic and Biomolecular Chemistry, 2010 , vol. 8, # 12 p. 2845 - 2849

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Citation Number: 18

Abstract

The selective conversion of citronellal to menthols, with good diastereoselectivities to (−)- menthol for the case of (+)-citronellal as starting material, can effectively be carried out in a one-step reaction under microwave irradiation catalysed by supported nanoparticles on mesoporous materials. 2% Pt/Ga-MCM-41 was found to be the optimum catalyst for the reaction, with a quantitative conversion of starting material and selectivities above 85% to ...