(1β,2α,7α,8β)-1,8,9,10-tetrachloro-11,11-dimethoxy<6.2.1.02,7>undec-3,5,9-triene 、
(5α,8α,8aβ,9β,10β,10aβ)-5,6,7,8-tetrachloro-5,8,8a,9,10,10a-hexahydro-9,10-etheno-5,8-dimethoxymethanoanthracene-1,4-dione 在
calcium carbonate 作用下,
以
苯 为溶剂,
反应 24.0h,
生成 (1α,4α,4aβ,5β,5aβ,7β,7aβ,8α,11α,11aβ,12β,13aβ,14β,14aβ)-1,4,4a,5,5a,7,7a,8,11,11a,12,13a,14,14a-tetradecahydro-1,2,3,4,8,9,10,11-octachloro-5,14:7,12-dietheno-1,4:8,11-di(dimethoxymethano)pentacene-6,13-dione 、 (1β,4β,4aα,5α,5aα,7β,7aβ,8α,11α,11aβ,12β,13aα,14α,14aα)-1,4,4a,5,5a,7,7a,8,11,11a,12,13a,14,14a-tetradecahydro-1,2,3,4,8,9,10,11-octachloro-5,14:7,12-dietheno-1,4:8,11-di(dimethoxymethano)pentacene-6,13-dione