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82800

Sigma-Aldrich

Pyridine hydrochloride

purum, ≥98.0% (AT)

Synonym(s):
Pyridinium chloride
Empirical Formula (Hill Notation):
C5H5N · HCl
CAS Number:
Molecular Weight:
115.56
Beilstein:
3615340
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

grade

purum

assay

≥98.0% (AT)

bp

222-224 °C (lit.)

mp

143-147 °C
145-147 °C (lit.)

SMILES string

Cl[H].c1ccncc1

InChI

1S/C5H5N.ClH/c1-2-4-6-5-3-1;/h1-5H;1H

InChI key

AOJFQRQNPXYVLM-UHFFFAOYSA-N

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Application

Pyridine hydrochloride can be used:
  • As an acid-base catalyst in the conversion of 4-pyridyl propargylic alcohols to the (E)-propenones and propynones.
  • As a reagent in the synthesis of 2-arylindene-1-ones , baicalein , pinosylvin derivatives.
  • As a reagent in O-demethylation reaction under microwave irradiation.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

Estrogen receptor ligands: design and synthesis of new 2-arylindene-1-ones
McDevitt RE, et al.
Bioorganic & Medicinal Chemistry Letters, 15(12), 3137-3142 (2005)
Recent advances in ether dealkylation
Weissman SA and Zewge D
Tetrahedron, 61(33), 7833-7863 (2005)
Synthesis and inhibitory effects of pinosylvin derivatives on prostaglandin E2 production in lipopolysaccharide-induced mouse macrophage cells
Park E-J, et al.
Bioorganic & medicinal chemistry letters, 14(23), 5895-5898 (2004)
Facile conversion of pyridine propargylic alcohols to enones: stereochemistry of protonation of allenol
Erenler R, et al.
Tetrahedron Letters, 46(34), 5683-5685 (2005)
Total synthesis of baicalein
Chen D-Z, et al.
Journal of Asian natural products research, 12(2), 124-128 (2010)

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