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The compound is prepared by the chlorsulfonation of benzene: C 6 H 6 + 2SHO 3 SCl → C 6 H 5 SO 2 Cl + HCl + SO 3. Benzenesulfonic acid is an intermediate in this conversion. Diphenylsulfone is a side product. Benzenesulfonyl chloride can also be prepared by treating benzenesulfonate salts with phosphorus oxychloride. [2]
Benzenesulfonic acid (conjugate base benzenesulfonate) is an organosulfur compound with the formula C 6 H 6 O 3 S.It is the simplest aromatic sulfonic acid.It forms white deliquescent sheet crystals or a white waxy solid that is soluble in water and ethanol, slightly soluble in benzene and insoluble in nonpolar solvents like diethyl ether.
C 6 H 5 SO 2 Cl + Na 2 SO 3 + H 2 O → C 6 H 5 SO 2 H + NaCl + NaHSO 4. Many other methods have been reported for production of sulfinic acids such as the use tin(II) chloride, or the Grignard reagent with sulfur dioxide. [4] The preparation of sulfinic acids by the oxidation of thiols is difficult due to overoxidation.
The Hinsberg reaction is a chemical test for the detection of primary, secondary and tertiary amines.The reaction was first described by Oscar Hinsberg in 1890. [1] [2] In this test, the amine is shaken well with the Hinsberg reagent (benzenesulfonyl chloride) in the presence of aqueous alkali (either KOH or NaOH).
Diphenylamine is an organic compound with the formula (C 6 H 5) 2 NH. The compound is a derivative of aniline, consisting of an amine bound to two phenyl groups. The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities. [5]
The original synthesis of PAES involved electrophilic aromatic substitution of an diaryl ether with the bis (sulfonyl chloride) of benzene. Reactions typically use a Friedel-Crafts catalyst, such as ferric chloride or antimony pentachloride: n O(C 6 H 5) 2 + n SO2Cl2 → {[O(C 6 H 4) 2]SO 2} n + 2n HCl
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