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 Triethoxyisobutylsilane
17980-47-1

Triethoxyisobutylsilane synthesis

6synthesis methods
Using halogenated isobutane and active metal reaction to generate organometallic compounds, this organometallic compound because the metal atom is directly connected to carbon to form a polar covalent bond, carbon is the negatively charged end of the extr
-

Yield:17980-47-1 93%

Reaction Conditions:

Stage #1:isopropyl chloride with iodine;magnesium in diethyl ether at 15; for 5 h;Inert atmosphere;
Stage #2:chloromethyltriethoxysilane in diethyl ether at 30; for 2 h;Inert atmosphere;Reagent/catalyst;Solvent;Temperature;

Steps:

3
In a three-necked flask, 0.1 mol of magnesium dust, 0.2 mol of 2-chloropropane, 0.2 mol of diethyl ether and 1 part of iodine were added to the three-necked flask, and the reaction was stirred for 5 hours under the protection of nitrogen at a water bath temperature of 15 ° C.The product obtained in step 1 is filtered and the filtrate is added dropwise to 0.2 mol of chloromethyltriethoxysilane and stirred at 30 ° C for 2 h to obtain crude isobutyltriethoxysilane.The crude product was subjected to vacuum distillation under reduced pressure at a negative pressure of 3 kPa, and a distillate fraction at a temperature of 68 to 71C was collected to obtain a high purity isobutyltriethoxysilane product.The yield was 93%.The product was qualitatively analyzed by gas chromatography-mass spectrometry. The purity of the product was measured by gas chromatography. The inorganic chloride ion content of the product was determined by titration. The purity of the product was 99.5%, the content of inorganic chloride was less than 50 ppm at 25 ° C and 0.88 g / cm3at25 ° C

References:

Xiamen Norns Technology Co Ltd;Chen, quanfeng;Guo, yaying;Fang, Jun;Lin, WenZhou CN103483370, 2016, B Location in patent:Paragraph 0032; 0033; 0034; 0035; 0036

FullText

Triethoxyisobutylsilane Related Search:

景德镇市| 门头沟区| 仪征市| 镇原县| 宜昌市| 资兴市| 高要市| 固原市| 丰城市| 建阳市| 台江县| 肥西县| 宜兴市| 许昌市| 千阳县| 民和| 讷河市| 烟台市| 柳州市| 理塘县| 葵青区| 前郭尔| 新竹市| 镇远县| 宁都县| 平遥县| 武邑县| 台中县| 措勤县| 盱眙县| 黄龙县| 梅河口市| 吴忠市| 蒙山县| 嫩江县| 九龙县| 郑州市| 乐东| 南澳县| 云林县| 北安市|