Аннотация:For the first time, by using 1-bromomagnesiummethyl-o-carborane and 1-bromomagnesium-methyl-2-methyl-o-carborane, an effective method of synthesis of 1-methoxy(dimethyl)silylmethyl-o-carborane, 1-ethoxy(dimethyl)silylmethyl-o-carborane, 1-diethoxy(methyl)silylmethyl-o-carborane, 1-triethoxysilylmethyl-o-carborane, 1-methoxy(dimethyl)silylmethyl-2-methyl-o-carborane and 1-diethoxy(methyl)silylmethyl-2-methyl-o-carborane was developed.