556440
1-Ethynyl-2,4-difluorobenzene
97%
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About This Item
Linear Formula:
HC≡CC6H3F2
CAS Number:
Molecular Weight:
138.11
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
97%
InChI
1S/C8H4F2/c1-2-6-3-4-7(9)5-8(6)10/h1,3-5H
SMILES string
Fc1ccc(C#C)c(F)c1
InChI key
HRUJQXRGWQWYDH-UHFFFAOYSA-N
assay
97%
mp
29-32 °C (lit.)
functional group
fluoro
storage temp.
2-8°C
Quality Level
General description
1-Ethynyl-2,4-difluorobenzene is an alkyne bearing fluoro group in the phenyl ring.
Application
1-Ethynyl-2,4-difluorobenzene (CM) may be used to synthesize sulfonatedpoly(aryleneether)s containing CM and TFP [4-[Trifluorovinyl(oxy)]phenol]. It may also be employed for the preparation of 4-(2,4-difluorophenylethynyl)-3-methyl-5-phenylisoxazole.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
4.1B - Flammable solid hazardous materials
wgk
WGK 3
flash_point_f
91.4 °F - closed cup
flash_point_c
33 °C - closed cup
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
Regulatory Information
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Synthesis of glycidyl triazolyl polymers using click chemistry.
Jung JH, et al.
Tetrahedron Letters, 48(37), 6442-6448 (2007)
Sulfonated poly (arylene ether) membranes containing perfluorocyclobutyl and ethynyl groups: Increased mechanical strength through chain extension and crosslinking.
Lee SB, et al.
Journal of Membrane Science , 456, 49-56 (2014)
Synthesis of 3, 4, 5-Trisubstituted Isoxazoles through Gold-Catalyzed Cascade Cyclization- Oxidative Alkynylation and Cyclization-Fluorination of 2-Alkynone O-Methyloximes.
Song D-H and Ryu J-S.
Bull. Korean Chem. Soc., 35(9), 2635-2644 (2014)
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