233277
2,6-Difluoropyridine
99%
Synonym(s):
2,6-Difluoropyridine
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About This Item
Empirical Formula (Hill Notation):
C5H3F2N
CAS Number:
Molecular Weight:
115.08
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
216-152-8
Beilstein/REAXYS Number:
1422549
MDL number:
Assay:
99%
Form:
liquid
Quality Level
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
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.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
91.4 °F - closed cup
flash_point_c
33 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Regulatory Information
危险化学品
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Lekha Gupta et al.
The Journal of organic chemistry, 78(9), 4214-4230 (2012-12-29)
Lithium diisopropylamide (LDA)-mediated ortholithiations of 2-fluoropyridine and 2,6-difluoropyridine in tetrahydrofuran at -78 °C were studied using a combination of IR and NMR spectroscopic and computational methods. Rate studies show that a substrate-assisted deaggregation of LDA dimer occurs parallel to an
Multicyclic polyethers derived from 1, 1, 1-tris (4-hydroxyphenyl) ethane and 2, 6-dihalopyridines.
Kricheldorf HR, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 42(22), 5725-5735 (2004)
Cyclic poly (pyridine ether) s by the polycondensation of 2, 6-difluoropyridine with various diphenols.
Kricheldorf HR, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 430(20), 4781-4789 (2005)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 233277-5G | 04061838783936 |
| 233277-25G | 04061838347572 |