(2R,4S,4aR,6S,7R,8R,8aS)-6-(tert-butoxy)-2,7,8a-trimethylhexahydro-4H-2,8-epoxy-4,7-methanobenzo[d][1,3]dioxine 在
三氟化硼乙醚 作用下,
以
甲苯 为溶剂,
反应 0.75h,
以54.4%的产率得到(2R,4S,4aR,6S,7R,8R,8aS)-2,7,8a-trimethylhexahydro-4H-2,8-epoxy-4,7-methanobenzo[d][1,3]dioxin-6-ol