一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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 Tetraphenylsilane
1048-08-4

Tetraphenylsilane synthesis

11synthesis methods
Tetraphenylsilane (TPSi) can be obtained by reaction of phenylmagnesium bromide with tetrachlorosilane or by reaction of phenyllithium with alkoxysilanes.TETRAPHENYLSILANE
-

Yield:1048-08-4 88%

Reaction Conditions:

with n-butyllithium in tetrahydrofuran;hexane at -90;Inert atmosphere;

Steps:

5 Example 5:

Under the full protection of nitrogen, add 400ml of tetrahydrofuran and 50g of bromobenzene into the 1000ml reactor, and cool down to -90°C after fully dissolving,Then, 121 ml of n-butyllithium (n-butyllithium is a 2.5mol/L n-hexane solution) was added dropwise at -90°C. The tetrahydrofuran solution of phenylchlorosilane (98.6g of triphenylchlorosilane was dissolved in 300ml of tetrahydrofuran), after the dropwise addition was completed, the temperature was naturally raised to room temperature, poured into 2000ml of water and stirred for 1 hour. Wash with 220ml toluene at 80°C for 1 hour, then cool down to 25°C with suction filtration to obtain fine products4-Bromotetraphenylsilane 94.1 g, HPLC=99.4%, yield 88%.

References:

CN114213444,2022,A Location in patent:Paragraph 0028; 0062-0063

Tetraphenylsilane Related Search:

河东区| 常山县| 恩施市| 洛浦县| 鄂尔多斯市| 永吉县| 望奎县| 泰安市| 章丘市| 张家界市| 玉屏| 满洲里市| 苍南县| 彭泽县| 青冈县| 策勒县| 定远县| 太湖县| 建平县| 西吉县| 峨眉山市| 凤山县| 浦东新区| 密云县| 德钦县| 湖口县| 都匀市| 高淳县| 封开县| 浦东新区| 香格里拉县| 阳信县| 西乌珠穆沁旗| 丰镇市| 蓬溪县| 宝山区| 屏山县| 水富县| 怀宁县| 利辛县| 通海县|