Fortschritte auf dem Organozinngebiet

Abstract

A survey is given of recent progress in the field of organotin chemistry, special attention being paid to the investigations performed at the Institute for Organic Chemistry T.N.O. at Utrecht (Holland).
Following some introductory remarks on the metal-carbon bond, with particular reference to the metals of the fourth main group, and on the classification of organotin compounds, the principal methods of preparation are reviewed briefly. The alkylation of tin tetrachloride by means of triisobutylaluminium is then discussed in some detail and the fact that the reaction is an equilibrium reaction is stressed. The importance of this synthetical method, especially for the manufacture of isobutyl- and isooctyltin compounds is pointed out.
The second section summarizes work on the biocidal, especially fungicidal properties of compounds of the general structure R₃SnX. At present, two representatives of this type are already being used in practice in this respect: the tributyltin derivatives – e.g. the oxide – as industrial fungicides, the triphenyltin derivatives – e.g. the acetate and the hydroxide – as agricultural fungicides.