3,6-dioxaocta-1,8-diyl bis(3-oxobutanoate) 、
4,7-dioxa-1,1,10,10-tetraphenyldeca-1,9-diene 在
manganese(III) triacetate dihydrate 、
溶剂黄146 作用下,
反应 1.0h,
以62%的产率得到15,28-dimethyl-3,6,9,12,16,20,23,27-octaoxa-2,13-dioxo-17,17,26,26-tetraphenyltricyclo[23.3.0.0(14,18)]octacosa-14,28-diene