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HomeProduct name list4-Fluorophenylacetylene

4-Fluorophenylacetylene

4-Fluorophenylacetylene Structural

What is 4-Fluorophenylacetylene?

Chemical properties

White Crystalline Solid

The Uses of 4-Fluorophenylacetylene

Intermediates of Liquid Crystals

The Uses of 4-Fluorophenylacetylene

Intermediates of liquid Crystals. As pharmaceutical intermediates. As organic synthesis intermediates. For vacuum deposition.

The Uses of 4-Fluorophenylacetylene

1-Ethynyl-4-fluorobenzene, a substituted phenylacetylene, may be used in the synthesis of aryl acetylenes, via Sonogashira type cross coupling reaction with various haloarenes in the presence of bis(μ-iodo)bis((-)-sparteine)dicopper(I) catalyst.

Synthesis Reference(s)

Synthesis, p. 589, 1996 DOI: 10.1055/s-1996-4265

General Description

1-Ethynyl-4-fluorobenzene (pFAB) is a fluorobenzene derivative. Trianionic pincer alkylidyne complex catalyzed polymerization of 1-ethynyl-4-fluorobenzene has been reported. The surface of the iodophenyl-terminated organic monolayers has been modified by Sonogashira coupling of the iodophenyl groups found on the surface with pFAB. Dimerization catalyzed by Y[N(TMS)2]3 and 4-chloroaniline gave exclusive formation of one of three possible enediynes in excellent yield.

Properties of 4-Fluorophenylacetylene

Melting point: 26-27 °C(lit.)
Boiling point: 55-56 °C40 mm Hg(lit.)
Density  1.048 g/mL at 25 °C(lit.)
refractive index  n20/D 1.516(lit.)
Flash point: 29 °C
storage temp.  2-8°C
solubility  soluble in Chloroform, Diethyl Ether, Ethanol
form  Liquid After Melting
color  Clear colorless to yellow
Specific Gravity 1.048
Water Solubility  Soluble in chloroform, diethyl ether, acetone, dichloromethane, hexane and ethanol. Highly soluble in toluene. Insoluble in water.
BRN  1099285
CAS DataBase Reference 766-98-3(CAS DataBase Reference)
NIST Chemistry Reference 4-FC6H4CCH(766-98-3)

Safety information for 4-Fluorophenylacetylene

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H228:Flammable solids
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240:Ground/bond container and receiving equipment.
P241:Use explosion-proof electrical/ventilating/lighting/…/equipment.
P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 4-Fluorophenylacetylene

InChIKey QXSWHQGIEKUBAS-UHFFFAOYSA-N

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