9-ethyl-1,8-diethynylanthracene 在
吡啶 、
copper(II) acetate monohydrate 、
copper(l) chloride 作用下,
反应 0.42h,
以54%的产率得到16,33-Diethylheptacyclo[29.3.1.114,18.05,34.010,15.017,22.027,32]hexatriaconta-1(35),2,4,10,12,14(36),15,17,19,21,27,29,31,33-tetradecaen-6,8,23,25-tetrayne