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 1,2-Bis(4-chlorophenyl)hydrazine
953-14-0

1,2-Bis(4-chlorophenyl)hydrazine synthesis

10synthesis methods
-

Yield: 87%

Reaction Conditions:

Stage #1:bis-(4-chloro-phenyl)-diazene;bis(pinacol)diborane with pyridine-4-carbonitrile in pentane at 70; for 24 h;Inert atmosphere;
Stage #2: with water in pentane at 20; for 0.25 h;

Steps:

10 This example is an example of synthesizing 4,4'-dimethylhydrogenazobenzene by the method of:
(0.2 mmol) of 4,4'-dichlorobenzene, 76.3 mg (0.3 mmol) of bis (pinacolato) diborane,(0.04 mmol) of 4-cyanopyridine, 1.0 mL of n-pentane, sealed with nitrogen gas, and reacted at 70C for 24 hours. PlusAfter stirring for 15 min at room temperature, the solvent was distilled off and CH2Br2 was added as an internal standard. 1H-NMRThe yield of 4,4'-dichloroazobenzene was 87%.

References:

Nanjing University;Li, Shuhua;Wang, Guoqiang CN105503925, 2016, A Location in patent:Paragraph 0050; 0051; 0052

1,2-Bis(4-chlorophenyl)hydrazine Related Search:

泽州县| 年辖:市辖区| 裕民县| 嵩明县| 仲巴县| 博爱县| 浮山县| 清新县| 格尔木市| 桂阳县| 巫山县| 武强县| 耿马| 宣化县| 萨嘎县| 广安市| 寿光市| 聂拉木县| 图们市| 渑池县| 体育| 墨竹工卡县| 监利县| 东阳市| 靖远县| 高碑店市| 永登县| 庐江县| 甘泉县| 永嘉县| 延庆县| 北票市| 渝中区| 兴宁市| 磐石市| 永靖县| 祁门县| 瑞安市| 寻乌县| 永吉县| 淳化县|