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 2,5-DICHLORO-3-METHYLPYRIDINE
59782-90-0

2,5-DICHLORO-3-METHYLPYRIDINE synthesis

4synthesis methods
-

Yield:-

Reaction Conditions:

with chlorine;molybdenum in benzene at 40 - 50;Temperature;Solvent;Reagent/catalyst;

Steps:

1.1-5.1
(1): Put 250g of benzene and 55g of picoline in a 500ml four-necked flask, stir and raise the temperature to 40-45°C to completely dissolve the picoline, and control the temperature at about 50°C.Add 1.0g of metallic molybdenum intermittently, and after the addition is complete, pass chlorine at this temperature for 11-12 hours. Convert the picoline to 2,3-dichloro-5-picoline for use.

References:

Jiangsu Youjia Plant Protection Co., Ltd.;Wu Xiaoju;Kong Yong;Xie Bangwei;Peng Da;Liu Yanpeng CN111187203, 2020, A Location in patent:Paragraph 0025-0027; 0030-0032; 0035-0037; 0040-0042; 0045

2,5-DICHLORO-3-METHYLPYRIDINE Related Search:

乳山市| 云和县| 合阳县| 昌黎县| 霸州市| 邳州市| 兴安县| 磴口县| 辉南县| 依兰县| 乾安县| 女性| 保山市| 安西县| 阆中市| 齐河县| 桦甸市| 西和县| 昌邑市| 南汇区| 南投市| 荥经县| 开封县| 中西区| 长寿区| 安新县| 平舆县| 东城区| 南平市| 靖远县| 秭归县| 台南市| 新昌县| 阿瓦提县| 巴中市| 和静县| 武陟县| 永胜县| 根河市| 铅山县| 榕江县|