Abstract:
The invention pertains to a process for preparing chlorodifluoroacetyl fluoride (CDAF) by oxidation of chlorotrifluoroethylene (CTFE) in a solvent using a continuously stirred tank reactor. It provides a process for the production of chlorodifluoroacetyl fluoride by comprises reacting a solvent solution of chlorotrifluoroethylene with oxygen in a reactor to form a product which comprises chlorodifluoroacetyl fluoride. The reacting may be conducted in a continuous or batch mode.
Abstract:
The invention pertains to a process for preparing chlorodifluoroacetyl fluoride (CDAF) by oxidation of chlorotrifluoroethylene (CTFE) in a solvent using a continuously stirred tank reactor. It provides a process for the production of chlorodifluoroacetyl fluoride by comprises reacting a solvent solution of chlorotrifluoroethylene with oxygen in a reactor to form a product which comprises chlorodifluoroacetyl fluoride. The reacting may be conducted in a continuous or batch mode.
Abstract:
A process for preparing a halogenated aliphatic- alpha , beta -unsaturated- beta -nucleophile-functionalized carboxylate ester having the formula: R -C(-Nu)=CH-COOR by reacting a nucleophile with a halogenated aliphatic- alpha , beta -unsaturated- beta halocarboxylate ester having the formula: R -CX =CH-COOR , wherein R is selected from the group consisting of straight chain and branched halogenated C1-C12 aliphatic groups; Nu is a nucleophile moiety different from X ; X is F, Cl or Br; and R is selected from the group consisting of straight chain and branched C1-C6 alkyl groups. Halogenated aliphatic- alpha , beta -unsaturated- beta -nucleophile-functionalized carboxylate esters, halogenated aliphatic- alpha , beta -unsaturated- beta -halocarboxylate esters, and intermediate compounds and processes in the preparation thereof are also disclosed.
Abstract:
Disclosed are improved fluorination processes and fluorine-containing compositions which involve introducing to one or more fluorination process compositions a water reactive agent in an amount and under conditions effective to decrease the amount of water in that composition. The water reactive agent is preferably introduced to the fluorination reaction process at a location proximate to the site of the fluorination reaction, or upstream of the fluorination reaction, in amounts and under conditions effective to produce a relatively lower concentration of water in the composition, and preferably throughout the fluorination process.