1,4-Bis(dimethylsilyl)benzene synthesis
- Product Name:1,4-Bis(dimethylsilyl)benzene
- CAS Number:2488-01-9
- Molecular formula:C10H18Si2
- Molecular Weight:194.42
1066-35-9
222 suppliers
$28.00/25mL
106-46-7
502 suppliers
$10.00/5g
2488-01-9
160 suppliers
$17.00/5g
Yield:2488-01-9 95%
Reaction Conditions:
with Tris(3,6-dioxaheptyl)amine;sodium in 5,5-dimethyl-1,3-cyclohexadiene at 100 - 110; for 7 h;Concentration;
Steps:
2 Example 2
In a 1000 mL reaction flask,Put in xylene 230g,Sodium metal 47g,TDA-1 0.37g,Warm up to 100110°C,Insulation 0.5h,Turn on stirringAfter stirring for 1 hour, all the sodium was made into sodium sand,Sodium sand mixture is formed.After 73.5 g of p-dichlorobenzene and 100 g of xylene were mixed and dissolved,Then add 96.5g dimethylchlorosilane,Form a mixture,The mixture was added to a constant pressure funnel.The liquid droplets in the constant pressure funnel are added to the sodium sand mixture. Dropping about 5h to complete,Then the reaction was completed by keeping at 100-110°C for 2 hours.After the reaction,Cool the reaction system to 5-15°C.Then add 280 mL of water from the constant pressure funnel.Stirring 1h,Stand for 1h,Then separate the lower brine phase,The upper organic phase is taken as the crude 1,4-bis (dimethylsilyl) benzene.The upper organic phase into the distillation flask,The temperature in the control bottle is below 120°C.Vacuum vacuum distillation,92 g of 1,4-bis (dimethylsilyl) benzene was obtained,The yield is 95%.Purity greater than 99%.
References:
Yangzhou San You Synthetic Chemical Co., Ltd.;Li Huining;Zhang Yang;Li Mingcheng;Zhang Caishan CN107698616, 2018, A Location in patent:Paragraph 0012-0021
1066-35-9
222 suppliers
$28.00/25mL
106-37-6
470 suppliers
$9.00/5g
2488-01-9
160 suppliers
$17.00/5g