695-44-3

Basic information

• Product Name: 1-chloro 3,3,4,4-tetrafluoro cyclobutene
• Synonyms: 1-chloro 3,3,4,4-tetrafluoro cyclobutene
• CAS NO: 695-44-3
• Molecular Weight: 160.499
• Mol File: 695-44-3.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 1-chloro 3,3,4,4-tetrafluoro cyclobutene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-chloro 3,3,4,4-tetrafluoro cyclobutene(695-44-3)
• EPA Substance Registry System: 1-chloro 3,3,4,4-tetrafluoro cyclobutene(695-44-3)

Safety Data

• Hazardous Substances Data: 695-44-3(Hazardous Substances Data)

Upstream product

• 377-93-5 1,2-dichloro-3,3,4,4-tetrafluorocyclobutene 

Relevant articles and documents

Synthesis of 1H-polychlorofluorocycloolefins

The synthesis of 1H-polychlorofluorocycloolefin by the hydrodehalogenation of perchlorofluorocycloolefin containing –CCl=CCl– or –CCl=CF– group in dimethylformaide (DMF) or dimethylacetamide (DMAC) over Zn was investigated. It was found that the hydrodehalogenation of perchlorofluorocycloolefin occurred only on the C (sp2) position but not on C (sp3) position. In addition, the mechanisms of the hydrodehalogenation of perchlorofluorocycloolefin were proposed.

Method for preparing 1H-perhalogenated cycloolefin by adopting organic solvent to provide hydrogen source for hydrogen-halogen exchange reaction

The invention relates to a method for preparing 1H-perhalogenated cycloolefin by adopting an organic solvent to provide a hydrogen source for hydrogen-halogen exchange reaction, and belongs to the field of chemical synthesis. The method includes: under the condition of presence of the solvent, adopting 1-chlorine-perhalogenated cycloolefin including 1,2-dichloro-3,3,4,4-tetrafluoro cyclobutene, 1-chloro-pentafluoro cyclobutene, 1,2-dichloro-hexafluoro cyclopentene, 1-chloro-heptafluoro cyclopentene, 1-chloro-hexafluro cyclohexene, 1,2-dichloro-octafluoro cyclopentene and the like as a raw material, enabling the raw material to react with zinc powder at a reaction temperature of 30-180 DEG C, and enabling selective hydrogen-halogen exchange reaction to prepare the 1H-perhalogenated cycloolefin. The method has the advantages that a reaction condition is mild, the 1H-perhalogenated cycloolefin is high in selectivity, N,N-dimethylformamide, N,N-dimethylacetamide, N,N-Formyldiethylamine or N, N-Diethylacetamide is adopted to provide the hydrogen source for hydrogenation, safety and reliability in technology are realized, and the 1H-perhalogenated cycloolefin can be separated effectively through a normal distilling manner industrially.