430-64-8

Basic information

• Product Name: CF2=C=CH2
• Synonyms: CF2=C=CH2
• CAS NO: 430-64-8
• Molecular Formula: C₃H₂F₂
• Molecular Weight: 76.0447864
• Mol File: 430-64-8.mol

Chemical Properties

• Appearance: /
• Density: 0.921 g/cm³
• Vapor Pressure: 4590mmHg at 25°C
• Refractive Index: 1.308
• CAS DataBase Reference: CF2=C=CH2(CAS DataBase Reference)
• NIST Chemistry Reference: CF2=C=CH2(430-64-8)
• EPA Substance Registry System: CF2=C=CH2(430-64-8)

Safety Data

• Hazardous Substances Data: 430-64-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C3H2F2/c1-2-3(4)5/h1H2

Upstream product

• 422-15-1 1,1,2,2-tetrafluoro-3-methylenecyclobutane 
• 1514-82-5 2-bromo-3,3,3-trifluoropropene 
• 406-58-6 1,1,1,3,3-pentafluorobutane 

Downstream Products

• 96258-18-3 3-phenyl-1-(difluoromethylene)cyclobutane 
• 96245-32-8 2,2-difluoro-3-phenyl-1-methylenecyclobutane 
• 112778-41-3 C₁₇H₁₄F₂ 
• 112778-34-4 C₁₇H₁₄F₂ 
• 90029-28-0 1-(1-Cyanoethenyl)-3-(difluoromethylene)cyclobutanecarbonitrile 
• 90029-29-1 1-(1-Cyanoethenyl)-2,2-difluoro-3-methylenecyclobutanecarbonitrile 
• 90029-30-4 4-(Difluoromethylene)-1-cyclohexene-1,2-dicarbonitrile 
• 90029-31-5 2,2-Difluoro-3'-(difluoromethylene)-3-methylene-<1,1'-bicyclobutyl>-1,1'-dicarbonitrile 
• 90029-32-6 (R*,S*)-3,3'-Bis(methylene)-2,2,2',2'-tetrafluoro<1,1'-bicyclobutyl>-1,1'-dicarbonitrile 
• 90029-33-7 (R*,R*)-3,3'-Bis(methylene)-2,2,2',2'-tetrafluoro<1,1'-bicyclobutyl>-1,1'-dicarbonitrile 
• 96245-36-2 3-(4-nitrophenyl)-1-(difluoromethylene)cyclobutane 
• 96245-34-0 2,2-difluoro-3-(4-nitrophenyl)-1-methylenecyclobutane 
• 112778-40-2 (1-Chloro-3-difluoromethylene-cyclobutyl)-benzene 
• 112778-33-3 (1-Chloro-2,2-difluoro-3-methylene-cyclobutyl)-benzene 

Relevant articles and documents

Method for producing 4,4,4- Trifluorobutane-2-One

The present invention provides a novel method for preparing 4,4,4-trifluorobutane-2-one by providing a fluorobutene selected from the group consisting of 2,4,4,4-tetrafluoro-1-butene, (E)-1,1,1,3-tetrafluoro-2-butene, (Z)-1,1,1,3-tetrafluoro-2-butene, and mixture thereof; and reacting the fluorobutene(s) with a proton acid and water.

A facile synthesis of N-[2-(trifluoromethyl)allyl]amides and their transformation into angularly trifluoromethylated bicyclic cyclopentenones

On treatment with sec-BuLi at -105°C, 2-bromo-3,3,3-trifluoropropene undergoes rapid lithium-halogen exchange to generate thermally unstable 1-(trifluoromethyl)vinyllithium, which reacts with W-tosylimines to afford N-[2-(trifluoromethyl)allyl] amides in high yield. Propargylation of the amides, followed by the Pauson-Khand reaction, readily provides pyrrolidine ring-fused cyclopentenones with an angular trifluoromethyl group. Copyright

A METHOD FOR PRODUCING 4,4,4-TRIFLUOROBUTANE-2-ONE

The present invention provides a novel method for preparing 4,4,4-trifluorobutane-2-one by providing a fluorobutene selected from the group consisting of 2,4,4,4-tetrafluoro-1-butene, (E)- 1,1,1,3-tetrafluoro-2-butene, (Z)-1,1,1,3-tetrafluoro-2-butene, and mixture thereof; and reacting the fluorobutene(s) with a proton acid and water.

1-(Trifluoromethyl)vinylation via oxirane or oxetane ring-opening: A facile synthesis of 4- or 5-hydroxy-functionalized 2-trifluoromethyl-1-alkenes

Introduction of a 1-(trifluoromethyl)vinyl group has been accomplished by the reaction of thermally unstable 1-(trifluoromethyl)vinyllithium (1) with strained cyclic ethers. Treatment of 2-bromo-3,3,3-trifluoropropene with butyllithium generates 1, which in turn reacts with several oxiranes or an oxetane at -100 °C in the presence of BF3·OEt2 to afford the corresponding 2-trifluoromethyl-1-alkenes bearing a hydroxy group on the 4- or 5-position. An enantiopure oxirane undergoes ring-opening without racemization, providing an optically active homoallyllic alcohol with a 3-trifluoromethyl group. Georg Thieme Verlag Stuttgart.

FLUOROBUTENE DERIVATIVES AND PROCESS FOR PRODUCING SAME

The present invention provides novel compounds, 2, 4,4,4-tetrafluoro-1-butene and (E)- and (Z)-1,1,1,3-tetrafluoro-2 butenes. Furthermore, the present invention provides the following novel first and second processes for producing 2,4,4,4-tetrafluoro-1-butene, (E)- and (Z)-1,1,1,3-tetrafluoro-2-butenes, and 1,1,3-trifluorobutadiene. The first process is a process for producing 2,4,4,4-tetrafluoro-1-butene by heating 1,1,1,3,3-pentaflurobutane at from about 200°C to about 700°C. The second process is a process for producing (E)- and (Z)-1,1,1,3-tetrafluoro-2-butenes by bringing 1,1,1,3,3-pentafluorobutane with a base. By the first and second processes, it is possible to obtain respective target fluorobutenes with high selectivity. In third to fifth processes, 2,4,4,4-tetrafluoro-1-butene, (E)- and (Z)-1,1,1,3-tetrafluoro-2-butene, and 1,1,3,-trifluorobutadiene can be produced by heating 1,1,1,3,3-pentafluorobutane in the presence of a catalyst. This catalyst can be regenerated by the contact with a halogen-containing gas in sixth process.