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 4-METHOXY-3-CHLOROPYRIDINE
89379-79-3

4-METHOXY-3-CHLOROPYRIDINE synthesis

2synthesis methods
-

Yield:89379-79-3 92%

Reaction Conditions:

in methanol at 20; for 2 h;

Steps:

1 Synthesis of 3-chloro-4-methoxypyridine

Into a 1000-mL round-bottom flask, was placed 3-chloro-4-nitropyridine (30.00 g, 189.2 mmol, 1.0 equiv), MeOH (400.0 mL), CILONa (56.7 mL, 5 mol/L, 1.50 equiv). The resulting solution was stirred for 2 hr at room temperature. The resulting mixture was concentrated under vacuum. The residue was dissolved in 500 mL of EA. The resulting mixture was washed with 3 x500 ml of brine. The mixture was dried over anhydrous sodium sulfate and concentrated under vacuum. This resulted in 25 g (92.0%) of 3-chloro-4-methoxypyridine as yellow oil.

References:

WO2020/191091,2020,A1 Location in patent:Page/Page column 141-142

4-METHOXY-3-CHLOROPYRIDINE Related Search:

清流县| 栾城县| 威宁| 奉节县| 于都县| 五常市| 庆元县| 仁寿县| 阿瓦提县| 鞍山市| 徐州市| 青川县| 唐河县| 蓬溪县| 准格尔旗| 汤原县| 常山县| 永吉县| 华容县| 方城县| 扶绥县| 尚志市| 兴城市| 建阳市| 韶关市| 南雄市| 蛟河市| 新乐市| 方正县| 洛浦县| 乌兰察布市| 保山市| 小金县| 南岸区| 宜州市| 公主岭市| 包头市| 正宁县| 内乡县| 申扎县| 潢川县|