diethyl furan-3-yl(methoxy)methylphosphonate 、 (4a'RS,5'SR)-8'[(1,1-dimethylethyl)dimethylsilyloxy]-1',1',4a'-trimethyl-6'-methylene-3',4',4a',5',6',7'-hexahydro-1'H-spiro[[1,3]dioxolane-2,2'-naphthalene]-5'-carboxaldehyde 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 、
正己烷 为溶剂,
生成 (E)-(4a'R,5'S)-5'-(2-(furan-3-yl)-2-methoxyethenyl)-1',1',4a'-trimethyl-6'-methylene-3',4',4a',5',6',7'-hexahydro-8-[(1,1-dimethylethyl)dimethylsilyloxy]-1'H-spiro[[1,3]dioxolane-2,2'-naphthalene] 、 (Z)-(4a'R,5'S)-5'-(2-(furan-3-yl)-2-methoxyethenyl)-1',1',4a'-trimethyl-6'-methylene-3',4',4a',5',6',7'-hexahydro-8-[(1,1-dimethylethyl)dimethylsilyloxy]-1'H-spiro[[1,3]dioxolane-2,2'-naphthalene]