三乙二醇二(对甲苯磺酸酯) 、
3,9-dimethyl-3,9-di(p-hydroxyphenyl)-2,4,8,10-tetraoxaspiro[5.5]undecane 在
caesium carbonate 作用下,
以
乙腈 为溶剂,
反应 127.0h,
以34%的产率得到16,22,41,47-tetramethyl-2,5,8,11,17,21,27,30,33,36,42,46,53,56,61,64-hexadecaoxanonacyclo[46.2.2
12,15.2
16,19.2
19,22.2
23,26.2
37,40.2
41,44.2
44,47.2
1,48]hexahexaconta-12,14,23,25,37,39,48,50(1),51,57,59,65-tetradecaene