5-(3,4-dimethoxyphenethyl)-3-[(3,4-dihydro-6-methoxy-2,2,7,8-tetramethyl-2H-1-benzopyran-5-yl)methyl]-1,2,4-oxadiazole 在
三氟二甲基硫醚络合物 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以58%的产率得到5-[2-(3,4-dihydroxyphenyl)ethyl]-3-[(3,4-dihydro-6-hydroxy-2,2,7,8-tetramethyl-2H-1-benzopyran-5-yl)-methyl]-1,2,4-oxadiazole