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ChemicalBook CAS DataBase List 4-Hydroxybenzenesulfonic acid
98-67-9

4-Hydroxybenzenesulfonic acid synthesis

11synthesis methods
The synthesis of 4-Hydroxybenzenesulfonic acid is as follows：Phenol (25 kg) and 96% sulfuricacid(28 kg) are heated to 50 ℃; then1.25 kg additional sulfuric acid is added and the reaction mixture is heated at 110 ℃ for 5 – 6 h. Reaction water, together with about 5% of the phenol, is distilled off during this period. Yield 95%.
-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: 67 percent / p-thiocresol, (C2H5)3N / CH2Cl2 / 0.25 h / -67 °C
2: 30percent H2O2 / D2O

References:

Field, Lamar;Lee, Chew [Journal of Organic Chemistry,1990,vol. 55,# 8,p. 2558 - 2563]

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