3861. Ethynylbenzene

Nomenclature

CAS number: 536-74-3
Phenylacetylene.
C8H6; mol wt 102.13.
C 94.08%, H 5.92%.

Description and references

Prepd by dropping β-bromostyrene on molten potassium hydroxide and distilling: Hessler, Org. Synth. 2, 67 (1922).

Chemical structure

Properties

Liquid. d420 0.9300. mp -44.8°. bp760 142.4°; bp90 75°; bp15 39°. nD20 1.5489. Insol in water; miscible with alcohol, ether, other organic solvents.