3-PHENYL-1-PROPYNE Property

Boiling point:

75 °C20 mm Hg(lit.)

Density 

0.934 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.526(lit.)

Flash point:

126 °F

storage temp. 

Flammables area

solubility 

Chloroform (Sparingly), DMSO (Slightly)

form 

Liquid

color 

Clear colorless to yellow

Specific Gravity

0.934

Stability:

Volatile

CAS DataBase Reference

10147-11-2

Safety

Hazard Codes 

Xi

Risk Statements 

10-36/37/38

Safety Statements 

16-26-36/37/39-37/39

RIDADR 

UN 3295 3/PG 3

WGK Germany 

3

HazardClass 

3.2

PackingGroup 

III

HS Code 

29029090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

3-PHENYL-1-PROPYNE Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to yellow liquid

Uses

3-Phenyl-1-propyne is used as a starting material in the synthesis of 4-phenyl-2-butyn-1-ol. It is also used in the preparation of beta-hydroxytriazoles and indoles.

Synthesis Reference(s)

The Journal of Organic Chemistry, 47, p. 1837, 1982 DOI: 10.1021/jo00349a007

General Description

3-Phenyl-1-propyne is a 3-aryl-1-propyne. The electronic transition of the resonance-stabilized 1-phenylpropargyl radical, produced in a jet-cooled discharge of 3-phenyl-1-propyne, has been studied by laser-induced fluorescence excitation and dispersed single vibronic level fluorescence (SVLF) spectroscopy. The microwave rotational spectrum of 3-phenyl-1-propyne (propargyl benzene) has been studied and its stable conformation is reported to have coplanar carbon atoms. Reaction of N-methyl-N-phenylhydrazine or N-phenylhydrazine with 3-phenyl-1-propyne is reported to yield indoles. 3-Phenyl-1-propyne is reported to react with styrene oxide and sodium azide, to afford β-hydroxytriazoles.