相转移催化合成2-羟基-5-芳偶氮苯甲醛

Synthesis of 2-Hydroxy-5-arylazobenzaldehyde by Phase Transfer Catalysis

采用相转移催化法 ,以各种芳胺为原料 ,经重氮化、偶合反应 ,合成了一系列 2 -羟基 - 5 -芳偶氮苯甲醛 ,产率 5 3%～ 92 %。考察了催化剂、p H值对偶合反应的影响 ,所得产品结构均经 1 HNMR、MS。

Used various arylamine as materials,a series of 2-hydroxy-5-arylazobenzaldehydes had been synthesized with 53%~92% yields by phase transfer catalysis. Key factors affected on coupling reaction had been investigated. Their structures were confirmed with ~1HNMR,MS and elemental analysis.