4-chloropyridine

4-chloropyridine Basic information

Product Name:	4-chloropyridine
Synonyms:	gamma-Chloropyridine;Pyridine, 4-chloro-;Trazodone Impurity 31;4-chloropyridine ISO 9001：2015 REACH
CAS:	626-61-9
MF:	C5H4ClN
MW:	113.54
EINECS:	210-956-2
Product Categories:
Mol File:	626-61-9.mol

4-chloropyridine Chemical Properties

Melting point	-43.5°C
Boiling point	147℃
density	1.200
refractive index	1.5304 (estimate)
Fp	53℃
pka	3.18±0.10(Predicted)

Safety Information

Hazardous Substances Data

626-61-9(Hazardous Substances Data)

MSDS Information

4-chloropyridine Usage And Synthesis

Purification Methods

Pour 4-chloropyridine into distilled water, and excess of 6M NaOH is added to give pH 12. The organic phase is separated and extracted with four volumes of diethyl ether. The combined extracts are filtered through paper to remove water, and the solvent is evaporated. The dark brown residual liquid is kept under high vacuum [Vaidya & Mathias J Am Chem Soc 108 5514 1986]. It can be distilled, but readily darkens and is best kept as the hydrochloride [7379-35-3] M 150.1, m 163-165o(dec). [Beilstein 20/5 V 410.]

4-chloropyridine Preparation Products And Raw materials

Raw materials	N-Nitropyridin-4-amine-->4,4'-DICHLORO-2,2'-BIPYRIDINE-->4-Chloropyridine N-oxide-->4-CHLORO-2-TRIMETHYLSILYLPYRIDINE-->CHLORIDE STANDARD-->BENZOPHENONE AZINE-->N-(4-Pyridyl)pyridinium chloride hydrochloride
Preparation Products	4,4'-Bipyridine-->4-Mercaptopyridine-->2-Bromo-4-chloropyridine-->4,4'-DIPYRIDYL SULFIDE-->4-(2-HYDROXYETHYLAMINO)-PYRIDINE-->4-CHLORO-3-IODOPYRIDINE-->4-CHLOROPYRIDIN-3-YLBORONIC ACID, PINACOL ESTER 98-->3-Chloropyridine-->4-Phenoxypyridine

6,9-Dichloro-2-methoxyacridine 4-Chloroquinoline 4,8-DICHLOROQUINOLINE 4-Chloro-8-methoxyquinoline 4-chloropyridine 4-CHLORO-2-METHYLQUINOLINE 4-Chloro-7-(trifluoromethyl)quinoline 2,4-DICHLOROQUINOLINE 4-Chloropyridine N-oxide Pentachloropyridine 3,4,5-Trichloropyridine 4,7-Dichloroquinoline 4-CHLOROQUINALDINE HCL 9-Chloroacridine 4-Chloropyridinium chloride 1-AZA-2-N-BUTOXY-6,9-DICHLORO-ACRIDINE 9-CHLORO-1,2,3,4-TETRAHYDROACRIDINE 4-CHLORO-6-METHOXY-2-PHENYLQUINOLINE

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4-chloropyridine

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