4,4-Dimethyl-2-pentyne Chemical Properties

Melting point:

-82.4°C

Boiling point:

83°C

Density 

0.718

refractive index 

1.4071

Flash point:

-10°C

form 

liquid

color 

colorless

Water Solubility 

Immiscible with water.

BRN 

1733540

CAS DataBase Reference

999-78-0

NIST Chemistry Reference

2-Pentyne, 4,4-dimethyl-(999-78-0)

Safety Information

Risk Statements 

11

Safety Statements 

9-16-33

RIDADR 

3295

HazardClass 

3

PackingGroup 

II

MSDS

• Language:English Provider:4,4-Dimethyl-2-pentyne
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4,4-Dimethyl-2-pentyne Usage And Synthesis

Uses

4,4-Dimethyl-2-pentyne is used in organometallic reactions for regioselectivity of its insertion into the Pd-C bond of cyclopalladated complexes. It is also used to prepare pyrimidine-dione by reacting with isocyanate in the presence of nickel/ N-heterocyclic carbene.

Synthesis Reference(s)

Tetrahedron Letters, 22, p. 2443, 1981 DOI: 10.1016/S0040-4039(01)92928-4

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