C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 7/22 (2006.01)
Patent
CA 2614858
The present invention relates to a process for the production of monoalkyltin trihalides of the formula RSnHal3, in which R = alkyl or cycloalkyl and Hal = Cl, Br or I. Said process comprises contacting the corresponding alkene or cycloalkene, stannous halide SnHal2, hydrogen halide HHal and optionally Sn metal, in the presence of at least one transition metal-based catalyst, thereafter isolating the monoalkyltin trihalides from the medium. The present invention also relates to a process for the production of dialkyltin dihalides of the formula R2SnHal2 from monoalkyltin trihalides of the formula RsnHal3', in which R = alkyl or cycloalkyl and Hal= Cl, Br or I. Said process comprises contacting monoalkyltin trihalides RsnHal3 and Sn metal, optionally thereafter isolating the dialkyltin dihalides R2SnHal2 from the medium.
L'invention porte sur un procédé de production de trihalogénures de monoalkyltine de formule RSnHal<SUB>3</SUB>, dans laquelle: R = alkyle ou cycloalkyle et Hal = Cl, Br ou l, consistant à mettre en contact l'alcène ou le cycloalcène correspondant, l'halogénure d'étain SnHal<SUB>2</SUB>, l'halogénure d'hydrogène Hhal, et facultativement du Sn, en présence d'au moins un catalyseur à base de métal de transition, puis à isoler le trihalogénure de monoalkyltine du milieu. L'invention porte également sur un procédé de production de dihalogénures de dialkyltine de formule R<SUB>2</SUB>SnHal<SUB>2</SUB> à partir de trihalogénures de monoalkyltine de formule RSnHal<SUB>3</SUB> dans laquelle: R = alkyle ou cycloalkyle et Hal = Cl, Br ou l, consistant à mettre en contact le trihalogénure de monoalkyltine RsnHal<SUB>3</SUB> et du Sn, puis facultativement à isoler le dihalogénures de dialkyltine de formule R<SUB>2</SUB>SnHal<SUB>2</SUB> du milieu.
Boele Maarten
Deelman Berth-Jan
Van Koten Gerard
Wagner Erika Monika
Arkema Vlissingen Bv
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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