(3aR,3bS,11aS)-2-phenyl-7-tri(propan-2-yl)silyloxyspiro[3a,3b,11,11a-tetrahydrochromeno[3,4-e]isoindole-4,1'-cyclopentane]-1,3-dione 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
苯 为溶剂,
以86.3%的产率得到2-Phenyl-7-tri(propan-2-yl)silyloxyspiro[chromeno[3,4-e]isoindole-4,1'-cyclopentane]-1,3-dione