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ChemicalBook--->CAS DataBase List--->536-74-3

536-74-3

536-74-3 Structure

536-74-3 Structure
IdentificationMore
[Name]

Phenylacetylene
[CAS]

536-74-3
[Synonyms]

AKOS BBS-00004407
PHENYLACETYLENE
Phenylacetylene Acetylene benzene
1-Phenylethyne
Acetylene, phenyl-
acetylene,phenyl-
Benzene, ethynyl-
Benzene,ethynyl-
Ethinylbenzene
Ethyne, phenyl-
ethyne,phenyl-
Ethynylbenaene
ethynyl-benzen
phenyl-acetylen
phenylacetylide
Phenylethyne
Phenylacetylene, 98+%
acetylene benzene
Benzene, ethynyl-(8CI, 9CI)
Phenylacetylene, pure, 98%
[EINECS(EC#)]

208-645-1
[Molecular Formula]

C8H6
[MDL Number]

MFCD00008570
[Molecular Weight]

102.13
[MOL File]

536-74-3.mol
Chemical PropertiesBack Directory
[Appearance]

colourless liquid
[Melting point ]

-44.8 °C
[Boiling point ]

142-144 °C (lit.)
[density ]

0.93 g/mL at 25 °C(lit.)
[vapor pressure ]

17.6 mm Hg ( 37.7 °C)
[refractive index ]

n20/D 1.549(lit.)
[Fp ]

88 °F
[storage temp. ]

2-8°C
[solubility ]

H2O: insoluble
[form ]

Liquid
[pka]

19(at 25℃)
[color ]

Clear colorless to yellow
[Specific Gravity]

0.930
[Stability:]

Stable. Flammable. Incompatible with strong oxidizing agents, acids, halogens.
[Water Solubility ]

INSOLUBLE
[Sensitive ]

Light Sensitive
[Detection Methods]

GC,NMR
[Merck ]

14,3861
[BRN ]

605461
[Dielectric constant]

3.0(20℃)
[CAS DataBase Reference]

536-74-3(CAS DataBase Reference)
[NIST Chemistry Reference]

Phenylacetylene(536-74-3)
[Storage Precautions]

Moisture sensitive
[EPA Substance Registry System]

536-74-3(EPA Substance)
Questions And AnswerBack Directory
[Synthesis]

It is suitable for the synthesis of Terminal Alkynes by the reaction of substituted benzaldehyde with alkali. 2-bromovinyl benzene can be obtained by reacting 2,3-dibromo-3-phenylpropionic acid with base and triethylamine in DMF, and then it can be directly reacted with potassium hydroxide to obtain the desired product Phenylacetylene.

536-74-3.png

Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
R65:Harmful: May cause lung damage if swallowed.
[Safety Statements ]

S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

UN 3295 3/PG 3
[WGK Germany ]

1
[RTECS ]

DA0780000
[F ]

8-19
[TSCA ]

Y
[HazardClass ]

3
[PackingGroup ]

III
[HS Code ]

29029090
Raw materials And Preparation ProductsBack Directory
[Raw materials]

beta-Bromostyrene
[Preparation Products]

4-PHENYLETHYNYLPHTHALIC ANHYDRIDE-->Diphenylacetylene-->5-(2-PHENYLETH-1-YNYL)THIOPHENE-2-CARBALDEHYDE-->1,2-NAPHTHALIC ANHYDRIDE-->4-Phenylpiperidine-->PPV-->(S)-(-)-1-PHENYLETHANOL-->polyphenylene (III)-->E-PHENYLETHENYLBORONIC ACID-->Chalcone-->Phenylpropiolic acid-->4-Methylcumarin-->7-chlorobicyclo[4.2.0]octa-1,3,5-triene-->Atropaldehyde-->Benzonitrile, 4-(1-oxo-3-phenyl-2-propynyl)--->1,2,4,5-tetraphenylbenzene-->2-Phenylquinolin-4-ol-->1,2-Ethanedione, 1-phenyl-2-(1-piperidinyl)- Piperidine, 1-(oxophenylacetyl)- (9CI)-->L-Homophenylalanine ethyl ester hydrochloride
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

phenylacetylene(536-74-3).msds
Hazard InformationBack Directory
[Description]

Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
[Chemical Properties]

colourless liquid
[Uses]

Ethynylbenzene, an aromatic hydrocarbon, is important in the petrochemical industry as an intermediate in the production of styrene, which in turn is used for making polystyrene, a common plastic mate rial.
[Application]

Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum.
Phenylacetylene was used in a study to investigate the mechanism of product formation during the palladium-catalysed phenylacetylene oxidative carbonylation reaction.
[Definition]

ChEBI: Ethynylbenzene is a member of benzenes.
[Synthesis Reference(s)]

Journal of the American Chemical Society, 89, p. 4487, 1967 DOI: 10.1021/ja00993a043
[General Description]

Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
[Flammability and Explosibility]

Flammable
[Purification Methods]

Distil phenylacetylene through a spinning band column. It should be filtered through a short column of alumina before use [Collman et al. J Am Chem Soc 108 2988 1986; for pK see Brandsma Preparative Acetylenic Chemistry, 1st Edn Elsevier 1971, p. 15, ISBN 0444409475]. [Beilstein 5 IV 1525.]
[Precautions]

Store in cool place. Moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids, halogens, alkali metals and oxidizing agents.
Spectrum DetailBack Directory
[Spectrum Detail]

Phenylacetylene(536-74-3)MS
Phenylacetylene(536-74-3)1HNMR
Phenylacetylene(536-74-3)13CNMR
Phenylacetylene(536-74-3)IR1
Phenylacetylene(536-74-3)Raman
Phenylacetylene(536-74-3)ESR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Phenylacetylene, pure, 98%(536-74-3)
[Alfa Aesar]

Phenylacetylene, 98+%(536-74-3)
[Sigma Aldrich]

536-74-3(sigmaaldrich)
[TCI AMERICA]

Ethynylbenzene,>97.0%(GC)(536-74-3)
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