Process for combining chlorine-containing molecules to...

C - Chemistry – Metallurgy – 07 – C

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C07C 19/08 (2006.01) C07C 17/26 (2006.01) C07C 19/01 (2006.01) C07C 19/10 (2006.01) C07C 21/18 (2006.01)

Patent

CA 2167698

Alternatives to chlorofluorocarbons are provided by the inventive process for synthesizing fluorine-containing products RCFbHc+a- 1Hf+d-1FeCR' which may optionally be carried out without the isolation of any intermediate in a single reactor or a series of reactors. The process comprises combining chlorine-containing reactants RCClaFbHc and R'CCldFeHf in the presence of hydrogen and at least one catalyst. R and R' are chosen from the group consisting of halogens, halogenated hydrocarbons, and hydrocarbons, and at least one of R and R' contains fluorine, a and d are integers from 1 to 3, b, c, e, and f are integers from 0 to 2, the sum of a, b, and c is 3, and the sum of d, e, and f is 3, and further treating the coupled products in the presence of an optional catalyst with hydrogen or a fluorinating agent.

Substituts de chlorofluorocarbones utilisés pour la synthèse de produits fluorés de formule RCFbHc+a-1Hf+d-1FeCR' pouvant éventuellement s'effectuer dans un seul ou plusieurs réacteurs sans avoir à isoler aucun des intermédiaires. Le processus consiste à combiner les réactifs RCClaFbHc et R'CCldFeHf en présence d'hydrogène et d'au moins un catalyseur, puis à traiter le produit couplé par de l'hydrogène ou par un agent de fluoration en présence d'un catalyseur facultatif. R et R' sont choisis parmi un groupe d'halogènes, d'hydrocarbures halogénés et d'hydrocarbures, et R ou R' contient du fluor, a et d sont des multiples entiers de 1 à 3; b, c, e, et f sont des multiples entiers de 0 à 2; la somme de a, b et c est égale à 3, et la somme de d, e et f est égale à 3.

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