Synthetic Approach to (-)-Cuparenone by Rhodium-Catalyzed Cyclization
1985 年 33 巻 11 号 p. 4821-4828
詳細
1985 年 33 巻 11 号 p. 4821-4828
(-)-α-Cuparenone, (17) was synthesized from the olefinic aldehyde (9) by utilizing a rhodium-catalyzed cyclization as a key step. The optically active aldehyde (7) was prepared by employing an asymmetric [2, 3] sigmatropic rearrangement of a quaternary L-prolinol derivative. The aldehyde (7) was also converted into its antipodal form (24) in several steps.
