The reaction of oxiranes 1 with arenesulfonic acids under phase transfer catalyst system (water/dichloromethane) or without catalyst (dry dichloromethane) affords regioisomeric arylsulfonyloxy primary and secondary alcohols. The latter is oxidized to 1-arylsulfonyloxy-2-alkanones 5 in good yield.
氧杂环1与芳基
磺酸在相转移催化剂体系(
水/
二氯甲烷)或无催化剂(干
二氯甲烷)条件下反应,生成区域异构的芳基
磺酸氧烷基初级和次级醇。后者被氧化生成良好产率的1-芳基
磺酸氧烷基-2-烷酮5。