2,3-Dibromo-6,19-di(propan-2-yl)-10,15-dioxatricyclo[14.4.0.04,9]icosa-1(16),4(9),5,7,17,19-hexaene 在
dicobalt octacarbonyl 、
potassium tert-butylate 作用下,
以
四氢呋喃 、
1,4-二氧六环 为溶剂,
反应 4.0h,
生成 5,18,25,38,45,58-Hexa(propan-2-yl)-9,14,29,34,49,54-hexaoxadecacyclo[40.18.0.02,21.03,8.015,20.022,41.023,28.035,40.043,48.055,60]hexaconta-1,3(8),4,6,15(20),16,18,21,23(28),24,26,35(40),36,38,41,43(48),44,46,55(60),56,58-henicosaene