A new method for the determination of the enantiomeric and diastereoisomeric composition of terpenoid carbonyl compounds is presented. Separation of the diastereoisomeric (+)-L- diisopropyl-tartrate acetals derived from dihydrocitronellal (6), hexahydropseudoionone (3), hexahydrofarnesal (7), and hexahydrofarnesylacetone (4), the C,,, C, 3, CIS, and CI8 intermediates in various syntheses of naturally occurring tocopherols and vitamin K,, can ...
