溶剂黄146 、 Acetic acid (3aS,3bR,6aS,7aR)-4-[1,3]dithian-2-yl-2,2-dimethyl-3a,3b,4,6a,7,7a-hexahydro-pentaleno[1,2-d][1,3]dioxol-4-yl ester 在
三氟化硼乙醚 、
lead dioxide 作用下,
生成
(1β,2α,6α,8β)-9-acetoxy-4,4-dimethyl-3,5-dioxatricyclo<6.3.0.02,6>undec-9-ene-11-carbaldehyde 、
(1β,2α,6α,8β)-9α,β-acetoxy-11-(bisacetoxymethyl)-4,4-dimethyl-3,5-dioxatricyclo<6.3.0.02,6>undec-9-ene