75995-77-6

Basic information

• Product Name: trans-2,2-bis(chlorodifluoromethyl)-3,4-difluoro-oxetan
• CAS NO: 75995-77-6
• Molecular Weight: 262.967
• Mol File: 75995-77-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trans-2,2-bis(chlorodifluoromethyl)-3,4-difluoro-oxetan(CAS DataBase Reference)
• NIST Chemistry Reference: trans-2,2-bis(chlorodifluoromethyl)-3,4-difluoro-oxetan(75995-77-6)
• EPA Substance Registry System: trans-2,2-bis(chlorodifluoromethyl)-3,4-difluoro-oxetan(75995-77-6)

Safety Data

• Hazardous Substances Data: 75995-77-6(Hazardous Substances Data)

Upstream product

• 1630-78-0 (E)-1,2-difluoroethene 
• 127-21-9 1,3-dichloro-1,1,3,3-tetrafluoro-propan-2-one 

Downstream Products

• 1630-77-9 (Z)-1,2-difluoro-ethene 
• 1630-78-0 (E)-1,2-difluoroethene 
• 75995-88-9 1-chloro-1,1,3-trifluoro-2-chlorodifluoromethylpropene 

Relevant articles and documents

Heterocyclic Polyfluoro-compounds. Part 31. Photochemical Oxetan Formation from Fluoroketones and Perfluoroaldehydes and 1,2-Difluoroethylene

The photochemical addition of five fluoroketones (hexafluoro-, chloropentafluoro-, 1,3-dichlorotetrafluoro-, 1,1,3-trichlorotrifluoro-, and 1,1,1-trifluoro-propan-2-one) and the perfluoroaldehydes RFCHO (RF=CF3, C2F5, or n-C3F7) to (Z)- or (E)-1,2-difluoroethylene at λ > 300 nm has been studied.Oxetan formation dominates with hexafluoropropan-2-one, but there is increasing competition from reactions involving free radicals arising from photolysis of the ketone as the chlorine content is increased.Oxetan formation occurs with little stereospecificity.The aldehydes give r-2-perfluoroalkyl-t-3,c-4-, and -c-3,t-4-, and -t-3,t-4-difluoro-oxetans, in the ratio 1.0 : 1.7 +/- 0.2 : 1.3 +/- 0.1, respectively, and in high yield (78-94percent).A small amount of olefin isomerisation occurred. Flow pyrolysis of the oxetans from hexafluoroacetone yields (Z)- and (E)-1,2-difluoroethylene and the olefin (CF3)2C=CHF, the oxetan yields the olefins (Z)- and (E)-CHF=CHF and (CF2Cl)2C=CHF, and r-2-pentafluoroethyl- or heptafluoro-n-propyl-c-3,t-4-difluoro-oxetans yield mainly the olefins (Z)- and (E)-RFCHC=CHF (RF=C2F5 or n-C3F7).