(4,6-Dimethoxy-3-phenyl-1-benzofuran-2-yl)-(4-methylphenyl)methanol 在
Montmorillonite K
10 clay 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到6,8,14,16,22,24-hexamethoxy-2,10,18-tri(4'-methylphenyl)-4,12,20-triphenyl-26,28,30-trioxaheptacyclo[17.5.2.2
3,9.2
11,17.0
5,29.0
13,27.0
21,25]triaconta-1(24),3,5,(29),6,8,11,13(27),14,16,19,21(25),22-dodecaene