Pyridinium p-toluenesulfonate

• Catalog No.: A15708
• CAS Number: 24057-28-1
• M. F.: C12H13NO3S
• M. W.: 251.30152
• Purity: 98+%

SYNONYMS

• Title: 对甲苯磺酸吡啶鎓
• IUPAC name: pyridin-1-ium 4-methylbenzene-1-sulfonate
• IUPAC Traditional name: pyridium tosylate
• Synonyms: PPTS; Pyridinium tosylate

DATABASE IDS

• MDL Number: MFCD00013108
• CAS Number: 24057-28-1
• Beilstein Number: 3764305
• EC Number: 246-002-7

PROPERTIES

• Purity: 98+%
• Melting Point: 116-120°C
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38
• Safety Statements: 26-37
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是

REFERENCES

• Mild catalyst for the formation of THP derivatives of alcohols superior to p-toluenesulfonic acid, where acid-sensitive functionality is present. Similarly, the reagent has been used for deprotection of THP ethers in ethanol: J. Org. Chem., 42. 3772 (1977).
• This application has been extended to other acetalization or trans-acetalization reactions, where more acidic conditions are undesirable: Synthesis, 724 (1979).
• For use in cleavage of TBDMS protecting groups, see: J. Chem. Soc. Perkin 1, 169 (1993).