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116203

Sigma-Aldrich

2-Chloro-3-hydroxypyridine

98%

Synonym(s):

2-Chloro-3-pyridinol

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About This Item

Empirical Formula (Hill Notation):
C5H4ClNO
CAS Number:
6636-78-8
Molecular Weight:
129.54
EC Number:
229-635-3
MDL number:
MFCD00006235
UNSPSC Code:
12352100
PubChem Substance ID:
24847271
NACRES:
NA.22

Assay

98%

mp

170-172 °C (lit.)

SMILES string

Oc1cccnc1Cl

InChI

1S/C5H4ClNO/c6-5-4(8)2-1-3-7-5/h1-3,8H

InChI key

RSOPTYAZDFSMTN-UHFFFAOYSA-N

Application

2-Chloro-3-hydroxypyridine has been used in the preparation of 3-hydroxypyridine-2( 1 H)-selone. It has also been used in the synthesis of all four possible benzo[4,5]furopyridine tricyclic heterocycles: benzo[4,5]furo[2,3-b]pyridine, benzo[4,5]furo[2,3-c]pyridine, benzo[4,5]furo[3,2-c]pyridine, and benzo[4,5]furo[3,2-b]pyridine. the synthesis involves α and γ-activation of chloropyridines, as well as palladium-mediated reactions.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

116203-25G:
116203-1KG:
116203-BULK:
116203-5KG:
116203-5G:
116203-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
STBK1866
STBH5934
STBD1805V
STBC4719V
STBB6482V

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Wen Song Yue et al.
Organic letters, 4(13), 2201-2203 (2002-06-21)
[reaction: see text] By taking advantage of the alpha- and gamma-activation of chloropyridines as well as palladium-mediated reactions, all four possible benzo[4,5]furopyridine tricyclic heterocycles, benzo[4,5]furo[2,3-b]pyridine, benzo[4,5]furo[2,3-c]pyridine, benzo[4,5]furo[3,2-c]pyridine, and benzo[4,5]furo[3,2-b]pyridine, are efficiently synthesized from 2-chloro-3-iodopyridine, 3-chloro-4-stannylpyridine, 4-chloro-3-iodopyridine, and 2-chloro-3-hydroxypyridine, respectively.
Novel heterocyclic systems. Part 21. Synthesis of 3-hydroxypyridine-2 (1H)-selone and its application in the synthesis of 1-azaphenoxaselenine and its substituted derivatives.
Smith K, et al.
Journal of the Chemical Society. Perkin Transactions 1, 2075-2079 (1986)

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