Azo Bond Reduction of N,N＇,diaryl Adipyl Bis-azo Compounds with Hydrazine Hydrate

• 作者: JIANG Xiao-Ying QIAO Mei-Ying WANG Bing-Xing WANG Hong-Liang
• 来源期刊: 结构化学
• 学科: 工学
• 关键词: 双偶氮化合物 偶氮染料 水合肼 债券 核磁共振方法 元素分析 红外光谱 反应条件
• 年，卷（期）: 2012,（6）
• 页码范围: 872-876
• 页数: 5页
• 分类号: TQ615.5|TQ613.1
• 语种: 英文

摘要

Reduction of a series of N,N＇-diaryl adipyl bis-azo compounds using hydrazine hydrate as reductant was investigated. The products were characterized by elemental analysis, IR and 1H NMR methods and confirmed to be N,N＇-diaryl adipyl dihydrazine. The results show that hydrazine hydrate can selectively reduce azo bonds with other potential reducible bonds intact in the N,N＇-diaryl adipyl bis-azo compounds. The yields are high up to 92% under mild reaction conditions. According to the previous reports, this reduction process was attributed to an indirect reduction mechanism through an intermediate diimide.