1,4-Bis-<β-(acetoacetoxy)-aethoxy>-benzol 、
1,1,10,10-tetraphenyl-1,9-decadiene 在
manganese triacetate 作用下,
以
溶剂黄146 为溶剂,
反应 1.0h,
以54%的产率得到8,21-Dimethyl-10,10,19,19-tetraphenyl-2,5,9,20,24,27-hexaoxatetracyclo[26.2.2.07,11.018,22]dotriaconta-1(31),7,21,28(32),29-pentaene-6,23-dione