Method for the preparation of alkyl tin halides

Details Method for the preparation of alkyl tin halides Method for the preparation of alkyl tin halides

1975-11-21

1977-09-20

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

204158R, C07F 722

Patent

active

040496899

ABSTRACT:
In the process for the preparation of alkyl tin halides by means of direct conversion of tin with aliphatic halides, the alkyl halide is fed in such a way gradually to the gas space over the further reaction components that there is an overpressure of no more than a few cms of mercury. The reaction is carried out in the presence of a liquid acid amide in quantities of 0.65 to 2.3 mol per gramatom of tin and in the presence of catalytic amounts of iodine and/or iodide at raised temperatures. The reaction is promoted under the influence of ultraviolet irradiation and by the addition of a catalyst of the type promoting free radial initiation reactions. SU

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