Ah&r&-The acid-catalysed hydrolysis of sulphilimines of XC,H,(Me)SNTs and MePhSNSO,C,H,Y type has been studied by a kinetic method in moderately concentrated (l-6 M) aqueous H,SO, and HCIO, solutions. The rate law: rate = k,[sulphilimine] is valid for hydrolysis leading to sulphoxides and sulphonami
Acid-catalysed hydrolysis of N-sulphonyl sulphilimines—II
✍ Scribed by I. Kapovits; F. Ruff; J. Gulyás; Á. Kucsman
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- French
- Weight
- 933 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4020
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The extent of protonation of several N-sulphonyl sulphilimines of XC,H,(Me)SNTs and MePhSNSO,C,H,Y type has been measured in aqueous sulphuric acid by the UV technique. Sulphilimines follow the H, acidity function and thermodynamic pK.'s can be calculated from the equation given for Hammett-bases. T
We recently reported' that acctanilide readily sulphonatcs in solutions of sulphuric acid > 70 per cent I& to form I+acetylsulphanilic acid , and noted that the rate of hydrolysis of this latter compound increased with increasing acidity beyond 80 per cent d= sulphuric acid. Ve have now prepared IG
The formation of episulphones fran the corresponding episulphides by oxidation with hydrogen peroxide is well docwnented (1). Only recently, however, has a successful partial oxidation procedure been reported (2) for the preparation of a number of episulphoxides.