METHOD OF PRODUCING GLYCIDYLOXYALKYL TRIALKOXYSILANES Russian patent published in 2013 - IPC C07F7/18 C07F7/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing glycidyloxyalkyl alkoxysilanes by hydrosilylation of olefin-glycide ether in the presence of a catalyst. Disclosed is a method of producing glycidyloxyalkyl alkoxysilanes of general formula (R")O-C_nH_2nSi(OR)₃, wherein groups R independently denote a linear or branched alkyl with 1-4 carbon atoms, n is a number equal to 1, 2, 3, 4, 5, 6, 7 or 8, R'' denotes a group H₂C(O)CH- or H₂C(O)CHCH₂-, by reacting (i) a functionalised alkene of general formula (R")OC_nH_2n-1 wherein R" denotes a group H₂C(O)CH- or H₂C(O)CHCH₂-, and n is a number equal to 1, 2, 3, 4, 5, 6, 7 or 8, (ii) with at least one hydrogen alkoxysilane of general formula HSi(OR)₃, wherein groups R independently denote a linear or branched alkyl with 1-4 carbon atoms, in the presence of (iii) at least one homogeneous catalyst selected from a group comprising Spayer catalysts and Karstedt catalysts, (iv) at least one solvent and/or at least one diluent and (v)at least one acid promoter from a group of mono- and dicarboxylic acids, wherein: components (i) alkene and (ii) hydrogen alkoxysilane, used in molar ratio of 1.8-1.0:1.0; catalyst (iii) is used in molar ratio to alkene (i) ranging from 1:1000000 to 1:25000; catalyst (iii) and promoter (v) are used in molar ratio from 1:250 to 1:25000 and the catalyst (iii) and promoter (v) are used together in a solvent and/or diluent in diluted form.

EFFECT: disclosed method enables to achieve high output of the end product compared with existing methods.

12 cl, 1 ex