dichloro-[chloro(dimethyl)silyl]-methylsilane

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: 1,1,2-trichloro-1,2,2-trimethyl disilane 103.8 g (0.5 mole) and petroleum ether 200 g were placed in the same type of reaction apparatus as used in the above Comparative Example, and an petroleum ether solution of phenyl lithium 42.5 g (0.5 mole) was dropwise added thereto for 3 hours while stirring at the reaction temperature of 25° to 30° C. After the dropwise addition, the stirring was continued for 2 hours at 25° to 30° C. to complete the reaction. In order to identify the reaction product, the product obtained by separating the by-produced lithium salt by filtration was subjected to 1H-NMR spectrum (C6D6) analysis in the same manner as in the above Comparative Example. As this result, it was proved that 1,1-dichloro-1,2,2-trimethyl-2-phenyl disilane was not substantially produced and that 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane could be produced at a favourable selectivity. The reaction product was then purified by a normal purification method to obtain 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane 113.4 g at the yield of 91%. After the dropwise addition the stirring was continued for 2 hours at 25° to 30° C. the reaction the product obtained by separating the by-produced lithium salt by filtration was not substantially produced

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

Procedure: 1,1,2-trichloro-1,2,2-trimethyl disilane 103.8 g (0.5 mole), cobalt chloride 6.5 g (0.05 mole) and diethyl ether 200 g were placed in the same type of reaction apparatus as used in the above Comparative Example, and a diethyl ether solution of phenyl magnesium bromide 90.5 g (0.5 mole) was dropwise added thereto for 3 hours while stirring at the reaction temperature of 25° to 30° C. After the dropwise addition, the stirring was continued for 2 hours at 25° to 30° C. to complete the reaction. In order to identify the reaction product, the product obtained by separating the by-produced magnesium salt by filtration was subjected to 1H-NMR spectrum (C6D6) analysis in the same manner as in the above Comparative Example. As this result, it was proved that 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane could be produced at a favourable selectivity. The reaction product was then purified by a normal purification method to obtain 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane 103.5 g at the yield of 83%. After the dropwise addition the stirring was continued for 2 hours at 25° to 30° C. the reaction the product obtained by separating the by-produced magnesium salt by filtration could be produced at a favourable selectivity The reaction product was then purified by a normal purification method

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: 1,1,2-trichloro-1,2,2-trimethyl disilane 103.8 g (0.5 mole) and petroleum ether 200 g were placed in the same type of reaction apparatus as used in the above Comparative Example, and an petroleum ether solution of phenyl lithium 42.5 g (0.5 mole) was dropwise added thereto for 3 hours while stirring at the reaction temperature of 25° to 30° C. After the dropwise addition, the stirring was continued for 2 hours at 25° to 30° C. to complete the reaction. In order to identify the reaction product, the product obtained by separating the by-produced lithium salt by filtration was subjected to 1H-NMR spectrum (C6D6) analysis in the same manner as in the above Comparative Example. As this result, it was proved that 1,1-dichloro-1,2,2-trimethyl-2-phenyl disilane was not substantially produced and that 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane could be produced at a favourable selectivity. The reaction product was then purified by a normal purification method to obtain 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane 113.4 g at the yield of 91%. After the dropwise addition the stirring was continued for 2 hours at 25° to 30° C. the reaction the product obtained by separating the by-produced lithium salt by filtration was not substantially produced

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

Procedure: 1,1,2-trichloro-1,2,2-trimethyl disilane 103.8 g (0.5 mole), cobalt chloride 6.5 g (0.05 mole) and diethyl ether 200 g were placed in the same type of reaction apparatus as used in the above Comparative Example, and a diethyl ether solution of phenyl magnesium bromide 90.5 g (0.5 mole) was dropwise added thereto for 3 hours while stirring at the reaction temperature of 25° to 30° C. After the dropwise addition, the stirring was continued for 2 hours at 25° to 30° C. to complete the reaction. In order to identify the reaction product, the product obtained by separating the by-produced magnesium salt by filtration was subjected to 1H-NMR spectrum (C6D6) analysis in the same manner as in the above Comparative Example. As this result, it was proved that 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane could be produced at a favourable selectivity. The reaction product was then purified by a normal purification method to obtain 1,2-dichloro-1,2,2-trimethyl-1-phenyl disilane 103.5 g at the yield of 83%. After the dropwise addition the stirring was continued for 2 hours at 25° to 30° C. the reaction the product obtained by separating the by-produced magnesium salt by filtration could be produced at a favourable selectivity The reaction product was then purified by a normal purification method