An alternative synthesis of enantiomerically enriched 2-methylpentanoic butyl ester (Methyl Chamomile) is proposed. The process entails three different steps: the key one is the asymmetric hydrogenation of 2-methylenpentanoic acid catalysed by a Ru(II) complex and a chiral diphosphine.
Synthesis of the Chiral Fragrance Methyl Chamomile by Asymmetric Hydrogenation
BEGHETTO, Valentina;MATTEOLI, Ugo;SCRIVANTI, Alberto;BERTOLDINI, Matteo
2013-01-01
Abstract
An alternative synthesis of enantiomerically enriched 2-methylpentanoic butyl ester (Methyl Chamomile) is proposed. The process entails three different steps: the key one is the asymmetric hydrogenation of 2-methylenpentanoic acid catalysed by a Ru(II) complex and a chiral diphosphine.
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