3,6-dioxaocta-1,8-diyl bis(3-oxobutanoate) 、
4,7,10,13,16-pentaoxa-1,1,19,19-tetraphenyl-1,18-nonadecadiene 在
manganese(III) triacetate dihydrate 、
溶剂黄146 作用下,
反应 2.5h,
以42%的产率得到15,37-dimethyl-3,6,9,12,16,20,23,26,29,32,36-undecaoxa-2,13-dioxo-17,17,35,35-tetraphenyltricyclo[32.3.0.0(14,18)]heptatriaconta-14,37-diene