232238

Pyridinium p-toluenesulfonate

98%

• Synonym(s): p-Toluenesulfonic acid pyridine salt, PPTS, Pyridine p-toluenesulfonate
• Empirical Formula (Hill Notation): C₁₂H₁₃NO₃S
• CAS Number: 24057-28-1
• Molecular Weight: 251.30
• Beilstein: 3764305
• EC Number: 246-002-7
• MDL number: MFCD00013108
• UNSPSC Code: 12352106
• PubChem Substance ID: 24853887
• NACRES: NA.22

Properties

• Assay: 98%
• form: solid
• 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

Description

Application

As a co-catalyst with L-proline improved both yield and enantioselectivity of an asymmetric aldol condensation between dioxanones and aldehydes.

Efficient catalyst for the preparation of tetrahydropyranyl ethers (for OH-protection using DHP, cat. no. D106208).

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves