成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List CHLORODIMETHYLVINYLSILANE
1719-58-0

CHLORODIMETHYLVINYLSILANE synthesis

12synthesis methods
-

Yield:1719-58-0 238 g

Reaction Conditions:

Stage #1:tetramethyldivinyldisiloxane with aluminum (III) chloride in n-heptane at 70; for 5 h;Inert atmosphere;
Stage #2: with acetic anhydride in n-heptane at 70 - 75; for 4 h;

Steps:

1.1; 1; 2-4 (1) Synthesis of ViMe2SiCl:
Add 186g ViMe2SiOSiMe2Vi, 186g n-heptane, 130g anhydrous aluminum chloride to a four-necked flask with nitrogen, mechanical stirring and dropping funnel. At 70,After 5 hours, a mixed solution containing 186g of acetic anhydride and 186g of n-heptane was added dropwise, and the temperature was maintained at 7075 during the dropping process.After the addition is complete, reflux for 4 hours, and then obtain 238 g of ViMe2SiCl with a GC purity of 99.61% through rectification.

References:

Wuxi Jingrui Optoelectric New Materials Co., Ltd.;Li Liang CN111620902, 2020, A Location in patent:Paragraph 0041-0043; 0046-0050

CHLORODIMETHYLVINYLSILANE Related Search: