中文摘要：

报道二-（4-溴-2,5-二烷氧基苯基）甲烷的一种简便合成方法.1,4-二乙氧基-2,5-二（烷氧基甲基）苯（1）在对甲苯磺酸催化下生成柱形杯[5]芳烃化合物2;2与N-溴代丁二酰亚胺（NBS）反应,生成二-（4-溴-2,5-二烷氧基苯基）甲烷（3）.该方法反应条件温和、操作简单、选择性好、收率高.2与硝酸发生硝化反应,生成二-（4-硝基-2,5-二甲氧基苯基）甲烷（4）.所合成的二-（4-溴-2,5-二烷氧基苯基）甲烷和二-（4-硝基-2,5-二甲氧基苯基）甲烷经过^1H NMR,^13C NMR和MS表征确认.

英文摘要：

A novel synthetic method for preparation of bis（4-bromo-2,5-dialkoxyphenyl）methane and bis（4-nitro-2,5-dimethoxyphenyl）methane was reported.1,4-Bis（ethoxymethyl）-2,5-dialkoxybenzene（1） was treated in boiling dichloromethane with catalytic amounts of p-toluenesulfonic acid gave pillar[5]arenes 2.2 reacted with N-bromosuccinimide（NBS） in acetone under refluxing gave bis（4-bromo-2,5-dimethoxy-phenyl）methane（3）.Nitration of 2 with nitric acid gave bis（4-nitro-2,5-dimethoxyphenyl）methane（4）.This synthetic method has some advantages,such as mild reaction conditions,simple operation,high selectivity and good yield.The structures of 3 and 4 were confirmed by ^1H NMR,^13C NMR and MS techniques.