[(2,8-Dioxo-4-phenyl-1-oxaspiro[4.5]deca-3,6,9-trien-3-yl)-[2-[2-[(2,8-dioxo-4-phenyl-1-oxaspiro[4.5]deca-3,6,9-trien-3-yl)-(4-methylphenyl)sulfonyloxy-lambda3-iodanyl]-4,6-dimethylphenyl]-3,5-dimethylphenyl]-lambda3-iodanyl] 4-methylbenzenesulfonate 在
cesium fluoride 作用下,
以
乙腈 为溶剂,
反应 12.0h,
以64%的产率得到3-Fluoro-4-phenyl-1-oxaspiro[4.5]deca-3,6,9-triene-2,8-dione