dimethyl undecacyclo[9.9.0.0
2,9.0
3,7.0
4,20.0
5,18.0
6,16.0
8,15.0
10,14.0
12,19.0
13,17]icos-8-ene-1,6-dicarboxylate 在
bis(2,4,6-collidine)bromonium triflate 作用下,
以
苯 为溶剂,
反应 0.33h,
以79%的产率得到dimethyl 8-bromoundecacyclo[9.9.0.0
2,9.0
3,7.0
4,20.0
5,18.0
6,16.0
8,15.0
10,14.0
12,19.0
13,17]icos-9-ene-1,6-dicarboxylate