acetoacetate diester of diethylene glycol 、
1,1,13,13-tetraphenyl-4,7,10-trioxa-1,12-tridecadiene 在
manganese(III) triacetate dihydrate 、
溶剂黄146 作用下,
反应 0.67h,
以35%的产率得到12,28-dimethyl-3,6,9,13,17,20,23,27-octaoxa-2,10-dioxo-14,14,26,26-tetraphenyltricyclo[23.3.0.0(11,15)]octacosa-11,28-diene