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 2,2,2-TRIFLUOROETHYL METHYL ETHER
460-43-5

2,2,2-TRIFLUOROETHYL METHYL ETHER synthesis

11synthesis methods
-

Yield: 88.6%

Reaction Conditions:

in methanol at 20; for 4 h;

Steps:

1
Weighed 127 g of intermediate p-toluenesulfonic acid-2,2,2-trifluoroethyl ester, 32.5 g of sodium methoxide and 100 ml of methanol in a 500 mL three-necked flask equipped with magnetic stirring and a thermometer, and stirred at 20 ° C. After 4 hours, the progress of the reaction was monitored by gas chromatography. After the reaction was completed, the stirring was stopped, and the reaction liquid was rectified to obtain 50 g of the desired product 2,2,2-trifluoroethyl methyl ether. The purity was 99.8%, and the yield was 88.6%.

References:

Zhejiang Chemical Institute Co., Ltd.;Sinochem Lantian Group Co., Ltd.;Li Wei;Zhang Di;Liu Dongpeng;Guo Zhikai CN109867612, 2019, A Location in patent:Paragraph 0055; 0057

2,2,2-TRIFLUOROETHYL METHYL ETHER Related Search:

梨树县| 团风县| 江口县| 申扎县| 永平县| 富民县| 奉节县| 舞钢市| 启东市| 始兴县| 宿松县| 东方市| 射阳县| 日土县| 东莞市| 淳安县| 天峨县| 安达市| 广汉市| 灵川县| 信阳市| 江孜县| 阿拉善盟| 石柱| 雷山县| 南皮县| 泰安市| 浑源县| 乌鲁木齐县| 南康市| 财经| 济宁市| 宣城市| 抚顺县| 台湾省| 沽源县| 林周县| 扶余县| 合江县| 策勒县| 隆昌县|