Method for producing epoxides by oxidising olefins

C - Chemistry – Metallurgy – 07 – D

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C07D 301/03 (2006.01) C07D 301/12 (2006.01)

Patent

CA 2419591

The invention relates to a novel method for producing epoxides by oxidising olefins in a homogeneous gas phase reaction wherein ozone and NO2 and/or NO are reacted with the desired olefin under mild reaction conditions and without a catalyst. The inventive method can be carried out as a continuous, one-step method in a reactor according to figure 1, and requires very little technical effort. Mono-olefins having 2 to 16 carbon atoms and diolefins having 4 to 16 carbon atoms can be epoxidised.

L'invention concerne un nouveau procédé de fabrication d'époxydes par oxydation d'oléfines, en effectuant une réaction en phase gazeuse homogène, caractérisé en ce qu'on fait réagir de l'ozone et/ou du NO, dans des conditions réactionnelles modérées et sans utiliser de catalyseur, avec l'oléfine souhaitée. Le procédé selon l'invention peut être mis en oeuvre selon un procédé en continu, en une étape, dans un réacteur conforme à la figure 1, et ne nécessite que très peu de moyens techniques. Des mono-oléfines de 2 à 16 atomes de carbone et des dioléfines de 4 à 16 atomes de carbone peuvent être ainsi peroxydées.

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