(((((1,2-phenylenebis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl)bis(4-oxo-4H-chromene-2-carboxylate) 在
二苯甲酮 作用下,
以
乙腈 为溶剂,
反应 0.5h,
以76%的产率得到syn-6,7,9,10,12,13,21a,21b,30,31,33,34,36,37-tetradecahydro-15H,28H-benzo[11',12'][1,4,7,10,13,16,19,22]octaoxacyclohexacosino[24',25':1,4]cyclobuta[1,2-b:4,3-b']dichromene-15,21,22,28-tetraone