摘要 |
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 cycloakyl 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.
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