A Short Enantiospecific Route to Isodaucane Sesquiterpenes from Limonene. On the Absolute Configuration of (+)-Aphanamol I and II

Article abstract of DOI:10.1021/jo00046a018

The isodaucane sesquiterpenes (+)-aphanamol I (3) and (-)-2-oxoisodauc-5-en-12-al <(-)-6> have been prepared in a short reaction sequence from 5(S)-isopropyl-2-methyl-1-cyclopentene-1-carbaldehyde (S)-23 (readily obtainable from (+)-limonene).Key steps we