25,26-dimethoxy-3,4,5,9,23-pentamethyl-13,16,19,27-tetraoxatetracyclo<19.3.1.1.1>heptacosa-1(25),2,5,7,9,11(26),21,23-octaene 在
trityl tetrafluoroborate 作用下,
以
乙醇 为溶剂,
反应 40.0h,
生成 25,26-dimethoxy-3,5,9,23-tetramethyl-4-(2-phenylethenyl)13,16,19-trioxa-27-oxoniatetracyclo<19.3.1.1.1>heptacosa-1(25),2,4,6(27),7,9,11(26),21,23-nonaene tetrafluoroborate