82815

Pyridinium p-toluenesulfonate

puriss., ≥99.0% (T)

• Synonyma: p-Toluenesulfonic acid pyridine salt, PPTS, Pyridine p-toluenesulfonate
• Empirický vzorec (Hillův zápis): C₁₂H₁₃NO₃S
• Číslo CAS: 24057-28-1
• Molekulová hmotnost: 251.30
• Beilstein/REAXYS Number: 3764305
• EC Number: 246-002-7
• MDL number: MFCD00013108
• UNSPSC Code: 12352106
• PubChem Substance ID: 329769266
• NACRES: NA.22

Vlastnosti

• grade: puriss.
• Quality Level: 200
• assay: ≥99.0% (T)
• form: crystals
• mp: 117-120 °C
• functional group: tosylate
• SMILES string: c1ccncc1.Cc2ccc(cc2)S(O)(=O)=O
• InChI: 1S/C7H8O3S.C5H5N/c1-6-2-4-7(5-3-6)11(8,9)10;1-2-4-6-5-3-1/h2-5H,1H3,(H,8,9,10);1-5H
• InChI key: ZDYVRSLAEXCVBX-UHFFFAOYSA-N

Popis

Application

Pyridinium p-toluenesulfonate is a mild and efficient catalyst for the formation and cleavage of acetals. This method has been adapted in the completely symmetric synthesis of tetrahydrolipstatin. It is also capable of selectively cleaving tert-butyldimethylsilyl (TBDMS) ethers in the presence of tert-butyldiphenlysilyl (TBDPS) ethers.

Bezpečnostní informace

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves