Production process of trimethylsilylacetylene
A technology of trimethylsilyl acetylene and production process, applied in the direction of silicon organic compounds and the like, can solve the problems of harsh production conditions, difficult to obtain raw materials, complicated production process, etc., and achieves low production cost, high product quality, and high yield. Effect
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Embodiment 1
[0021] A production process for trimethylsilylacetylene, comprising the following steps: wherein the raw materials used are metal magnesium, vinyl chloride, tetrahydrofuran, cuprous halide, 1,2-dibromoethane, trimethylchlorosilane and water in molar ratios respectively For: 1:1.5:13:0.15:0.07:0.04:2.5:130.
[0022] (1) Add the measured tetrahydrofuran and metal magnesium into the reaction kettle, then add iodine and 1,2-dibromoethane, raise the temperature to 60°C, feed the measured amount of vinyl chloride, keep the temperature for 3 hours, and cool down to 20°C. Add the metered cuprous halide, stir, start to add the metered mixture of tetrahydrofuran and trimethylchlorosilane, raise the temperature to 50°C, and keep it warm for 5 hours; then distill the generated vinyltrimethylsilane, good water for washing;
[0023] (2) Dissolve the vinyltrimethylsilane prepared in step (1) in methanol, control the temperature at 20°C, add an equal amount of bromine dropwise, until the rea...
Embodiment 2
[0025] A production process for trimethylsilylacetylene, comprising the following steps: wherein the raw materials used are metal magnesium, vinyl chloride, tetrahydrofuran, cuprous halide, 1,2-dibromoethane, trimethylchlorosilane and water in molar ratios respectively It is: 1:1:10:0.1:0.06:0.03:2:100.
[0026] (1) Add the measured tetrahydrofuran and metal magnesium into the reaction kettle, then add iodine and 1,2-dibromoethane, raise the temperature to 60°C, feed the measured amount of vinyl chloride, keep the temperature for 3 hours, and cool down to 30°C. Add the metered cuprous halide, stir, start to add the metered mixture of tetrahydrofuran and trimethylchlorosilane, raise the temperature to 60°C, and keep it warm for 5 hours; then distill the generated vinyl trimethylsilane, good water for washing;
[0027] (2) Dissolve the vinyltrimethylsilane prepared in step (1) in methanol, control the temperature at 15°C, add an equal amount of bromine dropwise, and then slowly...
Embodiment 3
[0029] A production process of trimethylsilylacetylene, which comprises the following steps: wherein the raw materials used are metal magnesium, vinyl chloride, tetrahydrofuran, cuprous halide, 1,2-dibromoethane, trimethylchlorosilane and water mole The ratios are: 1:2:15:0.2:0.08:0.05:3:150.
[0030] (1) Add the measured tetrahydrofuran and metal magnesium into the reaction kettle, then add iodine and 1,2-dibromoethane, raise the temperature to 60°C, feed the measured amount of vinyl chloride, keep the temperature for 3 hours, and cool down to 30°C. Add the metered cuprous halide, stir, start to add the metered mixture of tetrahydrofuran and trimethylchlorosilane, raise the temperature to 60°C, and keep it warm for 5 hours; then distill the generated vinyl trimethylsilane, good water for washing;
[0031] (2) Dissolve the vinyltrimethylsilane prepared in step (1) in methanol, control the temperature at 20°C, add an equal amount of bromine dropwise, and then slowly add an equ...
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