88. Total Synthesis of (±)-α-Acoradienevia Intramolecular Photoaddition and Reductive Cyclobutane Cleavage
    Oppolzer, W.; Zutterman, F.; Bättig, K.
    Helv. Chim. Acta 1983, 66, 522-533

(±)-α-Acoradiene (4) has been synthesized from 3-methoxy-2-cyclohexenone by a sequence of 8 steps. The key steps (Scheme 6) are the regio- and stereoselective photo[2+2]addition 7→6 and the reductive fragmentation 6→5.

DOI : 10.1002/hlca.19830660213