18371-25-0

Basic information

• Product Name: 3,3-difluoroprop-1-yne
• Synonyms: 1-Propyne, 3,3-difluoro-
• CAS NO: 18371-25-0
• Molecular Formula: C₃H₂F₂
• Molecular Weight: 76.0448
• Mol File: 18371-25-0.mol
• Article Data: 1

Chemical Properties

• Density: 1.04g/cm³
• Vapor Pressure: 3460mmHg at 25°C
• Refractive Index: 1.309
• CAS DataBase Reference: 3,3-difluoroprop-1-yne(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-difluoroprop-1-yne(18371-25-0)
• EPA Substance Registry System: 3,3-difluoroprop-1-yne(18371-25-0)

Safety Data

• Hazardous Substances Data: 18371-25-0(Hazardous Substances Data)

Relevant articles and documents

CARBENE CHEMISTRY. PART 13 . PREPARATION OF SOME FLUOROALLENES BY A CARBENE ROUTE, AND THE REACTION OF ALLENES WITH HALOGENOCARBENES

Fluoroallene and 1,3-difluoroallene are prepared in good overall yield by the addition of dichlorocarbene to vinyl fluoride and 1,2-difluoroethylene respectively, followed by pyrolysis of the dichlorocyclopropanes and treatment of the resulting dichloropropenes with zinc.Pyrolysis of 1,1-dichloro-2-fluorocyclopropane over zinc gives fluoroallene directly.The reaction of allene with 2,2,3-trifluoro-3-trifluoromethyloxiran at 180 deg C as a source of difluorocarbene gives both 1,1-difluoro-2-methylenecyclopropane and its rearrangement product 1-(difluoromethylene)cyclopropane, the latter reacting more readily with a second difluorocarbene to give 2,2,3,3-tetrafluorospiropentane.In an analogous way, fluoroallene reacts with dichlorocarbene, generated from trifluoro(trichloromethyl)silane at 140 deg C, to give E- and Z-1,1-dichloro-2-(fluoromethylene)cyclopropane, 1-(dichloromethylene)-2-fluorocyclopropane, and 2,2,3,3-tetrachloro-4-fluorospiropentane.