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651753

Sigma-Aldrich

2-Chloro-5-fluoropyrimidine

97%

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About This Item

Empirical Formula (Hill Notation):
C4H2ClFN2
CAS Number:
62802-42-0
Molecular Weight:
132.52
MDL number:
MFCD03788197
UNSPSC Code:
12352100
PubChem Substance ID:
24883860
NACRES:
NA.22

Assay

97%

refractive index

n20/D 1.503 (lit.)

density

1.439 g/mL at 20 °C (lit.)

functional group

chloro
fluoro

SMILES string

Fc1cnc(Cl)nc1

InChI

1S/C4H2ClFN2/c5-4-7-1-3(6)2-8-4/h1-2H

InChI key

AGYUQBNABXVWMS-UHFFFAOYSA-N

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Application

2-Chloro-5-fluoropyrimidine can be used as a starting material for the preparation of:
  • 5-fluoro-2-amino pyrimidines by reacting with various amines in the presence of K2CO3, via C-N bond forming reaction.
  • 2-chloro-5-(5-fluoropyrimidin-2-yl)benzoic acid, an intermediate, which is used in the synthesis of benzamide scaffolds as potent antagonists against P2X7 receptors.
  • 5-fluoro-2-cyano pyrimidine, a key intermediate used for the synthesis of 5-chloro-N-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-N-(5-methyl-1H-pyrazol-3-yl)pyrimidine-2,4-diamine, as a potent inhibitor of the JAK2 kinase.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

149.0 °F - closed cup

Flash Point(C)

65 °C - closed cup

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.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

651753-250MG:
651753-BULK:
651753-1G:
651753-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKBK3201V
MKBG1563V
MKAA0810
03806KH
05510EH

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Metal-free site-selective C-N bond-forming reaction of polyhalogenated pyridines and pyrimidines
Wang L, et al.
Royal Society of Chemistry Advances, 5(100), 82097-82111 (2015)
Discovery of 2-chloro-N-((4, 4-difluoro-1-hydroxycyclohexyl) methyl)-5-(5-fluoropyrimidin-2-yl) benzamide as a potent and CNS penetrable P2X7 receptor antagonist
Chen X, et al.
Bioorganic & Medicinal Chemistry Letters, 20(10), 3107-3111 (2010)
Use of ?-transaminase enzyme chemistry in the synthesis of a JAK2 kinase inhibitor
Frodsham L, et al.
Organic Process Research & Development, 17(9), 1123-1130 (2013)

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