Process for the production of...

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C - Chemistry, Metallurgy

07

C

C07C 409/16 (2006.01) C07C 407/00 (2006.01)

Patent

CA 2251968

In order to prepare 2,5-dimethyl-2,5-di-t-butylperoxy-hexane, 2,5-dimethyl-1,5- hexadiene is reacted with t-butylhydroperoxide in the presence of an electron pair acceptor Lewis under acid catalysis conditions in a substantially water- free solvent. If a technical, aqueous t-butylhydroperoxide is used, the water may be removed after the admixture of 2,5-dimethyl-1,5-hexadiene by adding sulphuric acid or calcium chloride, before adding the electron pair acceptor Lewis acid.

Afin de préparer du 2,5-diméthyl-2,5-di-t-butylperoxy-hexane, on fait réagir du 2,5-diméthyl-1,5-hexadiène avec de l'hydroperoxyde de t-butyle dans des conditions de catalyse acide en présence d'un acide de Lewis accepteur de paires d'électrons dans un solvant sensiblement exempt d'eau. Si l'on utilise du hydroperoxyde t-butyle technique aqueux, on peut enlever l'eau par adjonction d'acide sulfurique ou de chlorure de calcium, après l'avoir mélangé au 2,5-diméthyl-1,5-hexadiène, puis ajouter l'acide de Lewis accepteur de paires d'électrons.

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