1547-26-8

Usage

Uses

Used in Chemical Synthesis:
2,3,3,4,4,5,5-Heptafluoro-1-pentene is used as a building block in the synthesis of various fluorinated compounds for its high stability and inertness.
Used in Refrigerant Industry:
2,3,3,4,4,5,5-Heptafluoro-1-pentene is used as a chemical intermediate for the production of environmentally friendly refrigerants, replacing traditional ones that have a negative impact on the ozone layer and contribute to global warming.
Used in Pharmaceutical Industry:
2,3,3,4,4,5,5-Heptafluoro-1-pentene is used as a chemical intermediate in the development of pharmaceuticals, contributing to the creation of new drugs with improved properties.
Used in Agrochemical Industry:
2,3,3,4,4,5,5-Heptafluoro-1-pentene is used as a chemical intermediate in the production of agrochemicals, such as pesticides and herbicides, to enhance their effectiveness and reduce environmental impact.
Used in Polymer and Plastics Production:
2,3,3,4,4,5,5-Heptafluoro-1-pentene is used as a chemical intermediate in the manufacturing of polymers and plastics, improving their properties and expanding their range of applications.
It is important to handle 2,3,3,4,4,5,5-Heptafluoro-1-pentene with care due to its flammability and potential health hazards.

InChI:InChI=1/C5H3F7/c1-2(6)4(9,10)5(11,12)3(7)8/h3H,1H2

Upstream product

• 678-74-0 1-iodo-2,2,3,3,4,4,5,5-octafluoropentane 
• 65611-17-8 tris(2,2,3,3,4,4,5,5-octafluoropentyl) phosphite 
• 75885-51-7 5-bromo-1,1,2,2,3,3,4,4-octafluoropentane 
• 355-80-6 2,2,3,3,4,4,5,5-octafluoropentan-1-ol 
• 2264-00-8 2,2,3,3,4,4,5,5-octafluoropentyl p-toluenesulfonate 

Relevant academic research and scientific papers

SYNTHESIS OF FLUORINATED OLEFINS FROM FLUORINATED ALCOHOLS

Disclosed is a process for producing a hydrofluoroalkene, RfCF=CH2 comprising contacting a hydrofluoroalkanol of structure RfCF2CH2OH, with a lewis acid to produce a mixture, diluting said mixture with a solvent to produce a solvent mixture, contacting the solvent mixture with a reactive metal, heating the solvent mixture and reactive metal for a sufficient amount of time to produce a hydrofluoroalkene, and condensing and collecting the volatile products comprising the hydrofluoroalkene, wherein Rf is F, or a fluorine-substituted alkyl group.

PROCESS FOR PREPARING FLUORINE-CONTAINING OLEFIN

The present invention provides a process for preparing a fluorine-containing olefin represented by Formula (2): R1CF=CH(R2) wherein R1 is F, H, F(CF2)n-(n is an integer ranging from 1 to 10) or H(CF2)m- (m is an integer ranging from 1 to 10) and R2 is H, F(CF2)n- (n is an integer ranging from 1 to 10) or H(CF2)m- (m is an integer ranging from 1 to 10), the process including a step of reacting a fluorine-containing alcohol represented by Formula (1): R1CF2CH(R2)OH, wherein R1 and R2are the same as above, with a reducing gas in the presence of a specific metal oxide. According to the process of the invention, a desired fluorine-containing olefin can be produced with high selectivity in a single reaction step using a fluorine-containing alcohol as a raw material.

METHOD FOR PRODUCING OLEFIN

The present invention provides a method for producing an olefin represented by General Formula (II): RfCF=CH2 (II) (wherein Rf is defined as below), wherein the method includes the step of contacting a fluorohalide represented by General Formula (I) : RfCF2CH2X (I) (wherein Rf is H(CF2)n (n = 1 to 8) or F(CF2)n (n = 1 to 8), and X is Br or I) with a metal in a reaction medium of a polar organic solvent, or a mixed solvent of water and a polar organic solvent to conduct a dehalogenation reaction. The production method of the present invention provides olefins in a highly selective manner at a low cost and high yield under relatively mild reaction conditions.

α,α-DISUBSTITUTED POLYFLUOROALKANES

The reaction of 1,1,ω-trihydropolyfluoro-1-alkanols with triphenyldichloro- and triphenyldibromophosphorus gave 1-chloro- and 1-bromo-1,1,ω-trihydropolyfluoroalkanes.The 1,2-elimination of HF from the alkanes by the action of basic agents led to the formation of 1-chloro(bromo)-1,ω-dihydropolyfluoro-1-alkenes in the E form. 1,2-Dehalogenation (1-Br, 2-F) of the 1-bromo-1,1,ω-trihydropolyfluoroalkanes by the action of zinc made it possible to obtain the 1,1,ω-trihydropolyfluoro-1-alkenes. 1,2-Dehalogenation (1-Cl, 2-F) of the 1-chloro-1,1,ω-trihydropolyfluoroalkanes does not take place under analogous conditions.