Hexacoordinated germanium complexes, their preparation and their use as catalysts

摘要

The present invention relates to hexacoordinated complexes of germanium of formula 1: IMAGE The invention aims at a process for the preparation of the complexes of formula 1 according to which germanium oxide is reacted with an organic vicinal diol. Use of the products of formula 1 as catalysts for the functionalisation of hydroxylated silicone polymers with alkoxy functional groups.