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!

34009-61-5

DIETHYL METHYLPHENYLMALONATE synthesis

10synthesis methods
-

Yield:-

Reaction Conditions:

with heptamethyl cobyrinate perchlorate in N,N-dimethyl-formamide;Electrolysis;Irradiation;Inert atmosphere;

Steps:



General procedure: The controlled-potential electrolysis of 3 (0.10M) was carried out in the presence of 1 (9.3×10-4M) in DMF containing n-Bu4NBF4 (0.50M) in a cylindrical three-electrode cell with a single sheet of a microporous polypropylene membrane which was divided into two internal compartments under a nitrogen atmosphere. Platinum mesh working counter electrodes and an Ag-AgCl reference electrode were used in this system. The applied potential between the working and reference electrodes during the electrolysis was maintained constant by a Hokuto Denko HA-305 potentiostat/galvanostat, and the reaction was monitored by a Hokuto Denko HF-201 coulomb/ampere-hour meter. The light irradiation was carried out by a 300W tungsten lamp. After the electrolysis, DMF was removed by evaporation under reduced pressure and 30mL of CHCl3 was added to the residue. The chloroform layer was washed with water (3×40mL) to completely remove the DMF then dried over Na2SO4. The filtrate was then concentrated to dryness. The residue was passed through a silica gel short column eluting with CHCl3 to remove the n-Bu4NPF6 and 2, and the products were then analyzed by GC. The GC data were obtained using a Shimadzu GC-4C or GC-9APF apparatus

References:

Abe, Masaaki;Hisaeda, Yoshio;Pan, Ling;Shimakoshi, Hisashi;Tahara, Keishiro;Yamaguchi, Ryoko [Journal of Inorganic Biochemistry,2017,vol. 177,p. 438 - 443]

DIETHYL METHYLPHENYLMALONATE Related Search:

榕江县| 顺义区| 四川省| 筠连县| 霍邱县| 达州市| 商南县| 河东区| 织金县| 潼关县| 西昌市| 宜兰县| 和政县| 镇安县| 金阳县| 化州市| 卢氏县| 溧阳市| 呼伦贝尔市| 景宁| 聂拉木县| 镇巴县| 绵竹市| 长沙县| 宜兴市| 察哈| 临沧市| 襄樊市| 灌云县| 印江| 安化县| 灵丘县| 绥阳县| 蚌埠市| 屏边| 固阳县| 沅陵县| 广东省| 叙永县| 大竹县| 德阳市|