1759-63-3

Basic information

• Product Name: 1,2,2,3,3,4,4-heptafluoro-5-chlorocyclopentene
• Synonyms: 1,2,2,3,3,4,4-heptafluoro-5-chlorocyclopentene
• CAS NO: 1759-63-3
• Molecular Weight: 228.497
• Mol File: 1759-63-3.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 1,2,2,3,3,4,4-heptafluoro-5-chlorocyclopentene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,2,3,3,4,4-heptafluoro-5-chlorocyclopentene(1759-63-3)
• EPA Substance Registry System: 1,2,2,3,3,4,4-heptafluoro-5-chlorocyclopentene(1759-63-3)

Safety Data

• Hazardous Substances Data: 1759-63-3(Hazardous Substances Data)

Usage

Physical state

Colorless liquid

Odor

Pungent

Uses

a. Building block for various fluorinated compounds
b. Precursor for the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals
c. Solvent in the electronics industry
d. Refrigerant in cooling systems

Reactivity

Highly reactive

Chemical reactions

Can undergo addition, substitution, and elimination reactions

Safety precautions

Handle and store with caution due to reactivity and potential hazards

Upstream product

• 706-79-6 1,2-dichloro-3,3,4,4,5,5-hexafluorocyclopentene 
• 428-59-1 Hexafluoropropene oxide 
• 392-42-7 2-chloropentafluoro-1,3-butadiene 
• 77-47-4 hexachlorocyclopentadiene 
• 2368-01-6 1,2,4-trichloro-3,3,4,5,5-pentafluorocyclopent-1-ene 
• 706-78-5 octachlorocyclopentene 
• 3824-97-3 1,2,3-Trichloro-3,4,4,5,5-pentafluorocyclopentene 

Downstream Products

• 336-34-5 1-chloro-3,3,4,4,5,5-hexafluoro-2-methoxy-cyclopentene 
• 6776-07-4 (2-Chlor-3,3,4,4,5,5-hexafluor-cyclopenten-1-yl)-phenyl-phosphinsaeure 
• 1892-03-1 1,3,3,4,4,5,5-heptafluorocyclopentene 
• 15290-77-4 1,1,2,2,3,3,4-heptafluorocyclopentane 
• 3761-95-3 1-chloro-3,3,4,4,5,5-hexafluorocyclopentene 

Relevant articles and documents

REACTIONS OF DIFLUOROCARBENE WITH CONJUGATED POLYFLUORODIENES

Heating 2-chloroperfluoro-1,3-butadiene or perfluoro-1,3-pentadiene with excess hexafluoropropylene oxide leads to the formation of the corresponding cyclopentenes.

Method for simultaneously preparing dichlorohexafluorocyclopentene isomers

The invention relates to a method for simultaneously preparing dichlorohexafluorocyclopentene isomers. The method comprises the following steps: taking hydrogen fluoride and trichloropentafluorocyclopentene as reaction raw materials; carrying out gas-phase catalysis fluorine-chlorine exchange reaction in the presence of a fluorination catalyst to obtain the dichlorohexafluorocyclopentene isomers. By adopting the method provided by the invention, 1,2-dichlorohexafluorocyclopentene, 1,3-dichlorohexafluorocyclopentene and 1,4-dichlorohexafluorocyclopentene can be coproduced, wherein the single-pass yield of the 1,3-dichlorohexafluorocyclopentene and the 1,4-dichlorohexafluorocyclopentene is relatively high and the sum of the yield of the 1,3-dichlorohexafluorocyclopentene and the 1,4-dichlorohexafluorocyclopentene is greater than 57 percent; the raw materials are easy to obtain and the fluorination catalyst has stable activity, so that the method is suitable for simultaneously and continuously preparing the 1,2-dichlorohexafluorocyclopentene, the 1,3-dichlorohexafluorocyclopentene and the 1,4-dichlorohexafluorocyclopentene in a large scale in a gas phase.

Synthesis of 1,1,2,2,3,3,4-heptafluorocyclopentane as a new generation of green solvent

1,1,2,2,3,3,4-Heptafluorocyclopentane is a new generation of green solvent. It was synthesized by the liquid-phase fluorination reactions from hexachlorocyclopentadiene to 1-chloroheptafluoro-cyclopentene in the presence of KF in DMF and by the vapor-phase hydrogenation reaction from 1-chloroheptafluorocyclopentene to 1,1,2,2,3,3,4-heptafluorocyclopentane in the presence of Pd-based hydrogenation catalyst. Quantum chemical calculations for the isomers energies using Gaussian09 were conducted to verify the chemical equilibriums between isomers of trichloropentafluorocyclopentene or dichlorohexafluorocyclopentene in the fluorination reactions. Possible mechanisms for 1,1,2,2,3,3,4-heptafluorocyclopentane synthesis were proposed.