1-甲氧基-1,3-丁二烯 、
car-3-ene-2,5-dione 在
tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)ytterbium 作用下,
以
甲苯 为溶剂,
反应 48.0h,
生成
(2S,3bS,4aR,5aS,8aR)-2-((E)-2-Methoxy-vinyl)-4,4,5a-trimethyl-1,2,3b,4,4a,5a,6,8a-octahydro-3-oxa-cyclopropa[a]phenalen-5-one 、
(1aR,2aS,6S,6aS,7aS)-6-Methoxy-1,1,6a-trimethyl-1a,2a,3,6,6a,7a-hexahydro-1H-cyclopropa[b]naphthalene-2,7-dione 、 (1aR,2aS,6R,6aS,7aS)-6-Methoxy-1,1,6a-trimethyl-1a,2a,3,6,6a,7a-hexahydro-1H-cyclopropa[b]naphthalene-2,7-dione