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 3'-Chloroacetophenone
99-02-5

3'-Chloroacetophenone synthesis

10synthesis methods
The first step of the reaction is to use anhydrous ether as solvent, carbon tetrachloride as initiating catalyst, from magnesium, anhydrous ethanol and diethyl malonate, at atmospheric pressure and 20 ℃ ~ 35 ℃, heating reflux for 2 ~ 4 hours, while the pr
-

Yield:99-02-5 73%

Reaction Conditions:

with 1,10-Phenanthroline;nickel(II) bromide 2-methoxyethyl ether complex;sodium hydrogencarbonate in water at 100; for 5 h;Autoclave;

Steps:

General procedure for the synthesis of arylketones 3a-y:
General procedure: The reaction was carried out in an autoclave containing a 10 mL Teflon reactiontube. NiBr2·diglyme (5 mol%), 1,10-phen (10 mol%) and a magnetic stir bar wereplaced in the tube. Then, arylboronic acid (1.0 mmol), NaHCO3 (2.0 equiv), H2O (2.0mmol) and alkyl nitrile (1.0 mL) were added to the tube. After that the autoclave wascapped with a stopper. The autoclave was cool down by liquid nitrogen, then createdvacuum at this temperature and added HCFC-244bb (2.0 mL, 2.6 g) by self-suction.Finally the autoclave was wormed in an oil bath at 100 °C for 5 h. After the reaction,the autoclave was cooled to room temperature and vented the excess HCFC-244bb carefully. Water (30 mL) was added to the mixture, and the mixture was extractedwith dichloromethane (3 x 15 mL). The organic layers were washed with brine, driedover Na2SO4, and evaporated the organic solvent by rotatory evaporator. The crudeproduct was then purified by column chromatography.

References:

Tu, Dong-Huai;Li, Yang;Zhao, Bo;Gu, Yu-Jie;Wang, Bo;Lu, Ju-You;Lu, Jian [Synlett,2018,vol. 29,# 5,art. no. ST-2017-W0661-L,p. 593 - 596] Location in patent:supporting information

3'-Chloroacetophenone Related Search:

富川| 三亚市| 四子王旗| 云林县| 南靖县| 临汾市| 云林县| 咸宁市| 江都市| 大英县| 四子王旗| 伊通| 石阡县| 嘉义县| 兰西县| 余姚市| 泸西县| 陇川县| 资阳市| 晋宁县| 新田县| 治多县| 高碑店市| 通化市| 湛江市| 合川市| 丁青县| 汝南县| 璧山县| 西平县| 阿合奇县| 澄迈县| 富宁县| 嘉荫县| 托克托县| 山阳县| 三台县| 张家口市| 丰宁| 隆尧县| 鲁山县|