重氮苯基β-二酮的合成与表征  

Synthesis and characterization of two new β-diketones containing phenylazo group

作　　者：卢莲英[1] 汪敦佳[1] 曹晓艳[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《化学试剂》2011年第12期1144-1146,共3页Chemical Reagents

摘　　要：以苯胺为原料在酸性条件下与亚硝酸发生重氮化反应生成重氮盐,然后与β-二酮进行偶合反应合成了两种未见文献报道的重氮苯基β-二酮:重氮苯基乙酰丙酮和重氮苯基二苯甲酰甲烷,其结构通过红外光谱、紫外光谱、质谱和元素分析进行了确证。在320～400 nm的紫外光区具有强烈的特征吸收,是一类良好的UV-A紫外线吸收剂。Two new β-diketones containing phenylazo group,phenylazo-diacetone and phenylazo-dibenzoyl were synthesized from diazol and β-diketone by coupled reaction using NaOAc as feebleness base,diazol was formed by diazo-reaction of aniline with nitrous acid in hydrochloric acid.And their structures were determined by means of UV,IR,MS spectra and elemental analysis.They were kinds of good UV-A ultraviolet absorbents in UV region from 320 to 400 nm.

关 键 词：Β-二酮 重氮苯基 偶合反应 合成 

分 类 号：O625.64[理学—有机化学]