Enantioselective synthesis of (+)- and (−)-<i>cis</i>-2-methyl-4-propyl-1,3-oxathiane and their olfactive properties
作者:Wihelm Pickenhagen、Helene Brönner-Schindler
DOI:10.1002/hlca.19840670405
日期:1984.6.20
The enantioselective synthesis of (+)- and (−)-cis-2-methyl-4-propyl-1,3-oxathine 8 and 9 form (E)-2-hezen-1-ol (1) as common starting material is described. The two enantiomeric forms exhibit different organoleptic properties.
A new one-step strategy is described for the stereochemical assignment of acyclic 2- and 3-sulfanyl-1-alkanols using the CD excitonchiralitymethod. Using the 9-anthroate chromophore for the derivatization of both functional groups, the resulting bisignate CD curves unequivocally allow the determination of the stereochemistry from a single CD measurement. The usefulness of the newmethod is demonstrated