Synthesis of (S)-(−)-β-cuparenone and (S)-(−)-cuparene
作者:Bhasker Reddy Aavula、Qi Cui、Eugene A. Mash
DOI:10.1016/s0957-4166(00)00457-2
日期:2000.12
A short and efficient synthesis of the title compounds is described. (S)-(−)-β-Cuparenone was prepared in 31% yield from p-tolualdehyde and mesityl oxide in eight steps. Absolute stereochemistry was established by means of a diastereoselectivecyclopropanation using (R,R)-hydrobenzoin as a recoverable auxiliary.