Niu Yong-sheng
2010
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Journal
The Chemical Engineer
Abstract
3,3'-dichloro-azobenzene-4,4'-dimethyl chloride was synthesized by reaction of 3,3'-dichloro-4,4'-azobenzene diacid and thionyl chloride under supersonic irradiation.The optimum technologies for synthesis were obtained under irradiation power 250Wc:ontent of 3,3'-dichloro-4,4'-azobenzene diacid 1.9g;thionyl chloride 30mL;reaction temperature 80℃i;rradiation time 4h.The yield was 89.1%.The structure of the product was confirmed by melting point apparatus,IR,1H NMR and elemental analysis.