(±)-Cuparene, (±)-α-cuparenone, and (±)-tochuinyl acetate were synthesized from m-tolylthiomethyl chloride by using a Lewis acid-mediated [4++2] polar cycloaddition with substituted cyclopentenes as a key step.
(±)-Cuparene、(±)-α-cuparenone和(±)-tochuinyl acetate是通过使用Lewis酸介导的[4+2]极性环加成反应,以取代的
环戊烯为关键步骤,从m-tolylthiomethyl chloride合成的。