Patent · US Expired

Process for preparing epoxides

US4287128A · kind A · utility

5Cited by
1References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 18, 1980
Grant dateSep 1, 1981
Priority date
Expiry dateApr 18, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D303/48
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A new process for preparing haloalkyl epoxides and oxaziranes is described in which a mixture of an perhalo alkene or alkyl imine and chlorine gas is contacted with a Group IA, IIA metal oxide, carbonate or bicarbonate under mild conditions of temperature and pressure. The process, using perhalo alkenes or perhalo alkyl imines as starting material, represents a new economical, facil preparation of the monomer hexafluoropropylene oxide, such monomer is capable of polymerizaton or copolymerization to thermally stable and inert polymers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.