Naturalp-Menthene Monoterpenes: Synthesis of the Enantiomeric Forms of Wine Lactone, Epi-wine Lactone, Dill Ether, and Epi-dill Ether Starting from a Common Intermediate
作者:Stefano Serra、Claudio Fuganti
DOI:10.1002/hlca.200490189
日期:2004.8
A concise synthesis of the enantiomericforms of winelactone (5), epi-winelactone (14), dillether (6), and epi-dillether (15) was accomplished startingfrom the enantiomericforms of p-mentha-1,8(10)-diene-3,9-diol (8) (Scheme 3). The latter compounds were previously prepared in high optical purity by means of lipase-mediated kinetic resolution, and they were the common building blocks for this
Chemoenzymatic preparation of the p-menth-1,5-dien-9-ol stereoisomers and their use in the enantiospecific synthesis of natural p-menthane monoterpenes
作者:Stefano Serra、Igor Nobile
DOI:10.1016/j.tetasy.2011.07.014
日期:2011.7
alcohols gave the isomeric forms of the terpenes dill and epi-dillether, which were hydrogenated diastereoselectively to the corresponding (1R)- or (1S)-derivatives depending on the catalyst used. The oxidation of the latter ethers turned out to be stereoselective, affording either the corresponding p-menthan-9-oic lactone or the keto-acid derivatives depending on the starting isomer used.