Process for the preparation of alkylthiosulphates and...

C - Chemistry – Metallurgy – 07 – C

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260/464.1

C07C 381/02 (2006.01)

Patent

CA 1111861

PRECIS DE LA DIVULGATION : Procédé d'obtention des alkyl et arylalkyl- thiosulfates en système biphasique eau-solvant organique par substitution nucléophile d'un ion thiosulfate sur l'halogène d'un halogènure d'alkyle ou d'arylalkyle, ca- ractérisé en ce que la substitution est effectuée en présence d'un agent de transfert de phase ayant un rôle de catalyseur, dans des proportions catalytiques. L'agent de transfert de phase est choisi dans le groupe des halogènures et hydroxydes d'alkylarylammonium et phos- phonium ainsi que des résines échangeuses d'ions à groupes ammonium greffés.

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