trimethoxonium tetrafluoroborate 、
Dispirotetraoxapentacyclo<30.2.2.210,13.215,18.227,30>dotetraconta-1,10,12,15,17,27,29,32,35,37,39,41-dodecaen-4,6,21,23-tetrain-31',3''-phthalid> 以
二氯甲烷 为溶剂,
反应 5.0h,
以99%的产率得到1,18-Bis<2-(methoxycarbonyl)phenyl>-2,9,19,26-tetraoxapentacyclo<30.2.2.210,13.215,18.227,30>dotetraconta-1,10,12,15,17,27,29,32,35,37,39,41-dodecaen-4,6,21,23-tetrain-14,31-diylium-bis(tetrafluoroborat)