Process for preparing monoalkyltin halides and dialkyltin halides and their use

摘要

The invention relates to a process for the direct preparation of mixtures of monoalkyltin trichlorides RSnCl3 and dialkyltin dichlorides R2SnCl2 in one reaction step by partial alkylation of tin tetrachloride using alkylaluminum compounds in the form of their ether donor complexes, wherein an amount of ether greater than that required for stoichiometric formation of the donor complex is used in the reaction.