82815
Pyridinium p-toluenesulfonate
puriss., ≥99.0% (T)
Synonym(s):
p-Toluenesulfonic acid pyridine salt, PPTS, Pyridine p-toluenesulfonate
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About This Item
Empirical Formula (Hill Notation):
C12H13NO3S
CAS Number:
Molecular Weight:
251.30
UNSPSC Code:
12352106
NACRES:
NA.22
PubChem Substance ID:
EC Number:
246-002-7
Beilstein/REAXYS Number:
3764305
MDL number:
Assay:
≥99.0% (T)
Form:
crystals
grade
puriss.
Quality Level
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
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.
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Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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R.S. Bhide et al.
Tetrahedron Letters, 27, 671-671 (1986)
L.A. Paquette et al.
The Journal of Organic Chemistry, 46, 3368-3368 (1981)
Pyridinium p-toluenesulfonate. A mild and efficient catalyst for the tetrahydropyranylation of alcohols
N. Miyashita et al.
The Journal of Organic Chemistry, 42, 3773-3773 (1977)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 82815-100G | 04061833381472 |
| 82815-25G | 04061833005262 |