1-trimethylsilyl-3:3,8:8,13:13,18:18-tetrakisethanoeicosa-1,4,6,9,11,14,16,19-octayne 在
copper diacetate 、
copper(l) chloride 作用下,
以
吡啶 为溶剂,
反应 72.0h,
以55%的产率得到octaspiro<2.4.2.4.2.4.2.4.2.4.2.4.2.4.2.4>hexapentaconta-4,6,11,13,18,20,25,27,32,34,39,41,46,48,53,55-hexadecayne