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ChemicalBook CAS DataBase List 5-Amino-1-naphthalenesulfonic acid
84-89-9

5-Amino-1-naphthalenesulfonic acid synthesis

12synthesis methods
Laurent’s acid is coproduced with Peri acid as the minor component of a 5:2 isolated product ratio.
-

Yield:-

Steps:

Multi-step reaction with 5 steps
1: sulfuric acid / 5 h / 80 - 90 °C / Heating; Large scale
2: nitric acid / 3 h / 20 - 40 °C / Cooling
3: dolomite / water / 0.17 h
4: sulfuric acid; iron / 90 - 110 °C
5: sulfuric acid / 0.17 h

References:

Tongling Chemical Group Organic Chemical Co., Ltd;Wu, Fei;Hu, Zhanglai;Zhou, Rui;Cheng, Liansheng CN105503662, 2016, A

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