7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Chemical Properties

Boiling point:

58-64 °C (0.5 mmHg)

Density 

1.44±0.1 g/cm3(Predicted)

refractive index 

1.5150

Flash point:

127-128°C/25mm

storage temp. 

Refrigerator (+4°C)

form 

liquid

color 

Clear, dark orange

BRN 

2045059

CAS DataBase Reference

5307-99-3(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi,C

Risk Statements 

36/37/38-34-22

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3265 8 / PGIII

WGK Germany 

2

Hazard Note 

Irritant

HS Code 

2914290090

MSDS

• Language:English Provider:ACROS
• Language:English Provider:ALFA

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Usage And Synthesis

Chemical Properties

clear brown liquid

Synthesis

Under nitrogen protection, to a solution of dichloracetyl chloride (34 g, 0.23 mol) and cyclopentadiene(60 ml, 0.7 mol) in pentane (230 ml), heated to reflux in a three-necked flask with constant pressure funnel and condenser tube, was added dropwise via funnel triethylamine (24 g, 0.24 mol) in pentane (100 ml) with mechanical stirring during 4 hours, and a lot of white triethylamine hydrochloride was produced. After reflux for 2 hours, water (80 ml) was added to dissolve the triethylamine hydrochloride. The reaction mixture was extracted with pentane (2 × 60ml). The combined extracts were filtered and dried over anhydrous Na2SO4, and concentrated in vacuo to give brownish black oil. Fraction of reduced pressure distillation at 83~87 °C/400 Pa was collected to give 7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one (2, 33.5 g) as a colorless oil.

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one(5307-99-3)Related Product Information

• 3-Chloro-2-butanone
• Chloroacetone
• 7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one
• 1-CHLORO-2-METHYLBUTANE
• 1-CHLORO-3-METHYLBUTANE
• 1,1-DICHLOROBUTANE
• 2,2-DICHLOROHEXANAL
• 3-CHLOROHEXANE
• 6-Chlorohex-1-ene
• 2-CHLOROHEXANE
• 2-CHLOROPENTANE
• 1-Chloro-2-methylpropane
• Cyclopentene
• 2-Chlorobutane
• Cyclobutyl chloride
• 1,1-Dichloroacetone
• Cyclobutanone
• 2,2-DICHLOROBUTANE