Regio- and stereospecific construction of vicinal quaternary carbons: total synthesis of (±)-albene
作者:A Srikrishna
DOI:10.1016/0031-9422(95)00592-u
日期:1995.12
A regiospecific and stereoselective total synthesis of the trisnorsesquiternene (±)-albene, via a prochiral precursor is described. The ortho ester Claisen rearrangement of the allyl alcohol, obtained in two regiospecific reactions from a Diels-Alder adduct, followed by hydrolysis of the resultant ester furnished an ene acid in a highly stereoselective manner. Anhydrous copper sulphate catalysed intramolecular