2,4-DIBROMO-2,4-DIMETHYL-3-PENTANONE Property

Boiling point:

89-91 °C13 mm Hg(lit.)

Density 

1.61 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.506(lit.)

Flash point:

163 °F

storage temp. 

Flammables area

BRN 

1754205

CAS DataBase Reference

17346-16-6

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-27-36/37/39

RIDADR 

3334

WGK Germany 

3

HazardClass 

9

HS Code 

29147000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

2,4-DIBROMO-2,4-DIMETHYL-3-PENTANONE Chemical Properties,Usage,Production

Chemical Properties

clear colorless to amber liquid

Uses

2,4-Dibromo-2,4-dimethyl-3-pentanone may be used in the synthesis of 2-dimethylamino-4-methylene-1,3-dioxolanes, via debromination using zinc-copper couple in dimethylformamide and dimethylacetamide.

General Description

2,4-Dibromo-2,4-dimethyl-3-pentanone is an α,α′-dibromoketone. Electroreduction of 2,4-dibromo-2,4-dimethyl-3-pentanone in polar aprotic solvent has been reported. Electrochemical reduction of 2,4-dibromo-2,4-dimethyl-3-pentanone in acetic acid and sodium actetate yields α-acetoxy ketones. 2,4-Dibromo-2,4-dimethyl-3-pentanone reacts with lithium dimethylcuprate(I) in diethyl ether at -78°C to yield 2,2,4-trimethyl-3-pentanone (an α methyl ketone).