dichloro-(3,3-dimethylbutyl)-methylsilane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 3-liter, 4-necked flask equipped with an overhead stirrer, condenser, pot thermometer and additional funnel was charged with 970 g (4.49 mol) of 25% sodium methoxide in methanol. To this was added 401 g (2.01 mol) of neohexylmethyldichlorosilane at a rate such as to maintain reflux. Upon completion of the reaction, additional sodium methoxide solution was added to bring the pH to 10. The reaction mixture was cooled to room temperature and 500 ml of hexane was added. The reaction mixture was then filtered and the volatiles removed at 60° C. and 150 mm pressure. The volatiles consisted of two layers. The lower methanol layer was extracted with hexane (2×200 ml) and combined with the original top layer of hexane. The combined hexane layers were distilled through an 18" glass packed column to give 268 g (70% of theory) of neohexylmethyldimethoxysilane. Neohexylmethyldiethoxysilane was prepared following an analogous procedure. A 3-liter, 4-necked flask equipped with an overhead stirrer, condenser to maintain reflux was added The reaction mixture was then filtered the volatiles removed at 60° C. The lower methanol layer was extracted with hexane (2×200 ml) The combined hexane layers were distilled through an 18" glass

Conditions: temp:42.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 2 liter, 4-necked flask equipped as in Example 1 was charged with 500 g (5.94 mol) of neohexene and 1 ml of a 10% chloroplatinic acid in THF solution. The mixture was heated to reflux (about 42° C.). 805 g (5.94 mol) of methyldichlorosilane was then added dropwise. After the addition of about 70 ml of the silane, the reaction commenced and the temperature in the flask rose to 102° C. as the remainder of the silane was added. The reaction mixture was allowed to cool to room temperature (about 25° C.) after the addition of the silane. Upon completion of the reaction, the remaining volatile components were removed at reduced pressure and the residue was distilled to give 1100 g (84% of theory) of neohexylmethyldichlorosilane. A 2 liter, 4-necked flask equipped as in Example 1 The mixture was heated was added to cool to room temperature (about 25° C.) Upon completion of the reaction the remaining volatile components were removed at reduced pressure the residue was distilled

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 3-liter, 4-necked flask equipped with an overhead stirrer, condenser, pot thermometer and additional funnel was charged with 970 g (4.49 mol) of 25% sodium methoxide in methanol. To this was added 401 g (2.01 mol) of neohexylmethyldichlorosilane at a rate such as to maintain reflux. Upon completion of the reaction, additional sodium methoxide solution was added to bring the pH to 10. The reaction mixture was cooled to room temperature and 500 ml of hexane was added. The reaction mixture was then filtered and the volatiles removed at 60° C. and 150 mm pressure. The volatiles consisted of two layers. The lower methanol layer was extracted with hexane (2×200 ml) and combined with the original top layer of hexane. The combined hexane layers were distilled through an 18" glass packed column to give 268 g (70% of theory) of neohexylmethyldimethoxysilane. Neohexylmethyldiethoxysilane was prepared following an analogous procedure. A 3-liter, 4-necked flask equipped with an overhead stirrer, condenser to maintain reflux was added The reaction mixture was then filtered the volatiles removed at 60° C. The lower methanol layer was extracted with hexane (2×200 ml) The combined hexane layers were distilled through an 18" glass

Conditions: temp:42.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 2 liter, 4-necked flask equipped as in Example 1 was charged with 500 g (5.94 mol) of neohexene and 1 ml of a 10% chloroplatinic acid in THF solution. The mixture was heated to reflux (about 42° C.). 805 g (5.94 mol) of methyldichlorosilane was then added dropwise. After the addition of about 70 ml of the silane, the reaction commenced and the temperature in the flask rose to 102° C. as the remainder of the silane was added. The reaction mixture was allowed to cool to room temperature (about 25° C.) after the addition of the silane. Upon completion of the reaction, the remaining volatile components were removed at reduced pressure and the residue was distilled to give 1100 g (84% of theory) of neohexylmethyldichlorosilane. A 2 liter, 4-necked flask equipped as in Example 1 The mixture was heated was added to cool to room temperature (about 25° C.) Upon completion of the reaction the remaining volatile components were removed at reduced pressure the residue was distilled