but-2-ynedinitrile

but-2-ynedinitrile Property

Melting point:

20.5°C

Boiling point:

76.55°C

Density 

0.9708

refractive index 

1.4647

form 

liquid

color 

clear colorless

Hazard and Precautionary Statements (GHS)

but-2-ynedinitrile Chemical Properties,Usage,Production

Uses

Dicyanoacetylene is used for nucleophilic addition; [4 + 2] cycloaddition reactions; metal complexes insertion reactions.

Preparation

The synthetic route of Dicyanoacetylene is shown below:

storage

Dicyanoacetylene can be stored indefinitely at dry-ice temperatures and is handled at rt. It is much more sensitive to the presence of oxygen, a polymerization or condensation reaction probably taking place.

Purification Methods

Dicyanoacetylene purified by simple vacuum sublimation or atmospheric distillation.