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 2-(CHLOROMETHYL)ALLYLTRICHLOROSILANE
1871-57-4

2-(CHLOROMETHYL)ALLYLTRICHLOROSILANE synthesis

10synthesis methods
-

Yield:1871-57-4 32%

Reaction Conditions:

with pyridine;thionyl chloride in dichloromethane; for 3 h;Reflux;

Steps:

7.1

Example 7; 5-Cvclopropyl-2-(4-fluorophenyl)-6-rr(2-hvdroxy-1 ,2-oxaborolan-4- yl)methyll(methylsulfonyl)aminol-N-methyl-1 -benzofuran-3-carboxamide Step 1 : 3-chloro-2-(chloromethyl)prop-1 -eneA solution of thionyl chloride (290 g, 1 19 mmol) in DCM (200 mL) was added dropwise into a mixture of 2-methylenepropane-1 ,3-diol (88 g, 1 mol), dry pyridine (150 mL), and dry DCM (100 mL). The reaction mixture was heated to reflux with stirring for 3 hours and then allowed to stand overnight. The mixture was cooled to room temperature and poured into ice. The solution was neutralized with solid sodium bicarbonate and then extracted with diethyl ether(3 <0.6 L) followed by washing the ether extracts with dilute sulfuric acid. The combined organic layers were dried with anhydrous sodium sulfate, filtered, and concentrated in vacuo to give a residue which was fractionated to give 3-chloro-2- (chloromethyl)prop-l -ene (40.1 g, 32%) as a colorless oil.

References:

WO2012/67663,2012,A1 Location in patent:Page/Page column 41

2-(CHLOROMETHYL)ALLYLTRICHLOROSILANE Related Search: