357-26-6

Basic information

• Product Name: Octafluoro-1-butene
• Synonyms: Octafluoro-1-butene;Octafluorobut-1-ene
• CAS NO: 357-26-6
• Molecular Formula: C₄F₈
• Molecular Weight: 200.03
• Mol File: 357-26-6.mol
• Article Data: 5

Chemical Properties

• Melting Point: -132.5°C (estimate)
• Boiling Point: 4.85°C
• Flash Point: °C
• Appearance: gas
• Density: 1.5231 (rough estimate)
• Vapor Pressure: 1540mmHg at 25°C
• Refractive Index: 1.2492 (estimate)
• CAS DataBase Reference: Octafluoro-1-butene(CAS DataBase Reference)
• NIST Chemistry Reference: Octafluoro-1-butene(357-26-6)
• EPA Substance Registry System: Octafluoro-1-butene(357-26-6)

Safety Data

• Hazardous Substances Data: 357-26-6(Hazardous Substances Data)

Usage

Chemical Properties

gas

InChI:InChI=1/C4F8/c5-1(2(6)7)3(8,9)4(10,11)12

Upstream product

• 685-63-2 hexafluoro-1,3-butadiene 
• 355-49-7 perfluorocetane 
• 127629-27-0 F-1-iodo-2-methyl-butane 
• 79-38-9 Chlorotrifluoroethylene 

Downstream Products

• 1516-65-0 (Z)-perfluoro-2-butene 
• 1516-64-9 (E)-perfluoro-2-butene 
• 119450-58-7 1H,2H-perfluorobutane 
• 374-39-0 2,3,3,4,4,4-hexafluoro-1-butene 
• 75-73-0 carbon tetrafluoride 
• 76-19-7 freon-218 
• 116-14-3 polytetrafluoroethylene 
• 2154-59-8 difluoro-methylene 
• 2264-21-3 trifluoromethyl radical 
• 116-15-4 perfluoropropylene 
• 38683-48-6 1,1,2,3,3-pentafluoro-prop-1->3-enyl 
• 355-25-9 perfluorobutane 
• 137731-01-2 1-phenylazo-2-hydroperfluoro-1-butene 
• 355-21-5 1,2-dichloro-octafluoro-butane 

Relevant articles and documents

MANUFACTURING METHOD OF PERFLUOROCYCLOALKENE COMPOUND

PROBLEM TO BE SOLVED: To obtain a perfluorocycloalkene compound high in conversion ratio of a reaction at high yield and high selectivity. SOLUTION: A perfluorocycloalkene compound represented by (1), where R1 to R4 are same or different, and represent a fluorine atom or a perfluoroalkadiene compound, is obtained by conducting a cyclization reaction of a perfluoroalkanediene compound represented by CR12=CR2-CR3=CR42, where R1 to R4 are same or different and represent a fluorine atom or a perfluoroalkyl group. The cyclization reaction can be conducted in presence of a catalyst, by a gas phase continuous flow type, or by the gas phase continuous flow type in presence of the catalyst. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT

Bis(perfluoroorganyl)bromonium salts [(RF)2Br]Y (RF = aryl, alkenyl, and alkynyl)

Bromonium salts [(RF)2Br]Y with perfluorinated groups RFC6F5, CF3CFCF, C 2F5CFCF, and CF3C≡C were isolated from reactions of BrF3 with RFBF2 in weakly coordinating solvents (wcs) like CF3CH2CHF2 (PFP) or CF3CH2CF2CH3 (PFB) in 30-90% yields. C6F5BF2 formed independent of the stoichiometry only [(C6F5)2Br][BF 4]. 1:2 reactions of BrF3 and silanes C6F 5SiY3 (Y = F, Me) ended with different products - C 6F5BrF2 or [(C6F5) 2Br][SiF5] - as pure individuals, depending on Y and on the reaction temperature (Y = F). With C6F5SiF3 at ≥-30 °C [(C6F5)2Br][SiF5] resulted in 92% yield whereas the reaction with less Lewis acidic C 6F5SiMe3 only led to C6F 5BrF2 (58%). The interaction of K[C6F 5BF3] with BrF3 or [BrF2][SbF 6] in anhydrous HF gave [(C6F5) 2Br][SbF6]. Attempts to obtain a bis(perfluoroalkyl) bromonium salt by reactions of C6F13BF2 with BrF3 or of K[C6F13BF3] with [BrF2][SbF6] failed. The 3:2 reactions of BrF3 with (C6F5)3B in CH2Cl2 gave [(C6F5)2Br][(C6F 5)nBF4-n] salts (n = 0-3). The mixture of anions could be converted to pure [BF4]- salts by treatment with BF3·base.

HIGH-ENERGY REACTIONS OF POLYFLUOROALKANES. IV. THERMAL TRANSFORMATIONS OF CHLOROTRIFLUOROETHYLENE

-