1,1,20,20-tetraphenyl-1,19-icosanediene 、
2-[2-[2-[4-[4-[2-[2-[2-(3-Oxobutanoyloxy)ethoxy]ethoxy]ethoxy]phenyl]phenoxy]ethoxy]ethoxy]ethyl 3-oxobutanoate 在
manganese triacetate 作用下,
以
溶剂黄146 为溶剂,
反应 1.0h,
以30%的产率得到18,41-Dimethyl-20,20,39,39-tetraphenyl-6,9,12,15,19,40,44,47,50,53-decaoxapentacyclo[52.2.2.22,5.017,21.038,42]hexaconta-1(57),2(60),3,5(59),17,41,54(58),55-octaene-16,43-dione