trans-1,2-diacetoxy-1,2-dihydrobenzocyclobutene 、
3-acetoxy-3-acetyl-1,1-ethylenedioxy-1,2,3,4,5,8-hexahydro-5,8-dioxonaphthalene 在
氮气 、
乙醚 作用下,
以
甲苯 为溶剂,
反应 3.0h,
以to yield 80 mg (42%) of rac-3,6,11-triacetoxy-3-acetyl-1,1-ethylenedioxy-1,2,3,4,5,5a,6,11,11a,12-decahydro-5,12-dioxonaphthacene in the form of a pale yellow solid of melting point 133°-143° C.的产率得到3,6,11-triacetoxy-3-acetyl-1,1-ethylenendioxy-1,2,3,4,5,5a,6,11,11a,12-decahydronaphthacene-5,12-quinone