The cascade reactions of 1-arenoylcyclopropanecarboxylic acids with arenes proceed smoothly in freshly distilled HOTf to give the corresponding tetrahydro-5H-benzo[c]fluorene derivatives in good yields along with high stereoselectivities under mild conditions.
1-芳甲酰基
环丙烷羧酸与
芳烃在新鲜蒸馏的HOTf中发生级联反应,在温和条件下以高产率和高立体选择性地生成相应的四氢-5H-苯并[c]
芴衍
生物。