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An unusual substitution reaction of an aromatic sulfonic group based on 3-carbonyl-4-phenolsulfonic acid |
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| Authors: | Yun-Ming Wanga Bing-Tao Tanga Wei Maa Shu-Fen Zhanga De-Feng Zhaoa b a State |
| Affiliation: | Yun-Ming Wanga,Bing-Tao Tang(a,*),Wei Maa,Shu-Fen Zhanga,De-Feng Zhao(a,b) a State Key Laboratory of Fine Chemicals,Dalian University of Technology(West Campus),Dalian 116024,China b Jihua Group Co.,Ltd.,Dalian 116024,China |
| Abstract: | An unusual substitution reaction of an aromatic sulfonic group based on 3-carbonyl-4-phenolsulfonic acid was discovered in a diazo-coupling process. The reaction occurred under mild reaction conditions (pH 8.0–9.0, 0–5 °C, solvent: water) within a short reaction time (1 h). A plausible substitution reaction mechanism by phenol–ketone resonance was proposed. |
| Keywords: | Aromatic sulfonic groups Substitution reaction Diazo-coupling Diazonium salt |
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