1,2-二氰基-4,5-双十四烷氧基苯合成方法的改进

Improved Synthesis of 1,2 Dicyno 4,5 bis(tetradecyl alkoxy)benzene

由邻苯二酚经溴代反应制得 １，２二溴４，５苯二酚，再与无水碳酸钾和 １溴代十四 烷反应制得 １，２二溴４，５双十四烷氧 基苯，最后在 Ｄ Ｍ Ｆ－ Ｎａ Ｉ体系中与氰 化亚铜反 应制得 １，２二氰基４，５双十四烷氧基苯。新化合物结构经元素分析、 Ｉ Ｒ，１ Ｈ Ｎ Ｍ Ｒ 等证实。

Dicyno 4,5 bis(tetradecyl alkoxy)benzene(Ⅲ) was synthesized by an improved method in three steps: (1) bromination of catechol to produce 1,2 dibromocatechol(Ⅰ); (2) reaction of Ⅰ with potassium carbonate and 1 bromotetradecane to prepare 1,2 dibromo 4,5 bis(tetradecyl alkoxy)benzene(Ⅱ); (3) reaction of Ⅱ with copper(Ⅰ) cynide in the DMF NaI system to obtain Ⅲ. The structure of the new compounds were testified by element analysis, IR and 1H NMR.