3-fluoro-1'-methoxy-4'-oxo-1',4'-dihydro-[1,1'-biphenyl]-2-carbaldehyde 、
a-叠氮基-苯乙酸甲酯 在
(1,5-cyclooctadiene)copper(I) hexafluoroacetylacetonate 作用下,
反应 20.0h,
以50%的产率得到methyl 9-fluoro-5a-methoxy-3-oxo-2-phenyl-2,2a,2a1,3,5a,9b-hexahydrofluoreno[9,1-bc]furan-2-carboxylate