233277

2,6-Difluoropyridine

99%

• Synonym(s): 2,6-Difluoropyridine
• Empirical Formula (Hill Notation): C₅H₃F₂N
• CAS Number: 1513-65-1
• Molecular Weight: 115.08
• Beilstein: 1422549
• EC Number: 216-152-8
• MDL number: MFCD00006227
• UNSPSC Code: 12352100
• PubChem Substance ID: 24853965
• NACRES: NA.22

Properties

• Quality Level: 100
• Assay: 99%
• form: liquid
• refractive index: n20/D 1.437 (lit.)
• bp: 124.5 °C/743 mmHg (lit.)
• density: 1.268 g/mL at 25 °C (lit.)
• functional group: fluoro
• SMILES string: Fc1cccc(F)n1
• InChI: 1S/C5H3F2N/c6-4-2-1-3-5(7)8-4/h1-3H
• InChI key: MBTGBRYMJKYYOE-UHFFFAOYSA-N

Description

General description

Lithium diisopropylamide (LDA)-mediated ortholithiations of 2,6-difluoropyridine in tetrahydrofuran at -78°C has been studied using a combination of IR and NMR spectroscopic and computational methods. Polycondensation of bistrimethylsilyl derivatives of various diphenols with 2,6-difluoropyridine in N-methylpyrrolidone in the presence of K₂CO₃ has been investigated.

Application

2,6-Difluoropyridine has been used in the preparation of poly(pyridine ether)s via polycondensation with silylated 1,1,1-tris(4-hydroxyphenyl)ethane.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H226,H315,H319,H335
• Precautionary Statements: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 91.4 °F - closed cup
• Flash Point(C): 33 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves