A Chemoenzymatic, Preparative Synthesis of the Isomeric Forms ofp-Menth-1-en-9-ol: Application to the Synthesis of the Isomeric Forms of the Cooling Agent 1-Hydroxy-2,9-cineole
作者:Stefano Serra、Claudio Fuganti、Francesco G. Gatti
DOI:10.1002/ejoc.200701010
日期:2008.2
A preparative-scale synthesis of the four p-menth-1-en-9-ol isomers 2a–5a has been achieved by means of two chemoenzymatic processes. Both synthetic pathways start from the enantiomeric forms of limonene that are converted into p-mentha-1,8-dien-9-al isomers 12 and 15. The baker's yeast mediated reduction of the latter aldehydes afforded compounds 3a and 5a, respectively, with very high enantioselectivity