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 2,4-DICHLORO-3,5-DINITROBENZAMIDE
13550-88-4

2,4-DICHLORO-3,5-DINITROBENZAMIDE synthesis

1synthesis methods
-

Yield:-

Reaction Conditions:

with ammonia in ethanol;

Steps:

2.b b.

b. 2,4-Dichloro-3,5-dinitrobenzamide A mixture of 74.9 g. (0.25 mole) of 2,4-dichloro-3,5-dinitrobenzoyl chloride and 200 ml. of concentrated ammonia is placed in a mortar and ground with a pestle for ten minutes. The mixture stands for 2 hours at room temperature. The yellow precipitate is removed by filtration and washed with water. There is obtained 67.7 gm. (97%) of yellow needles melting at 263°-265°. Recrystallization of 1.00 g. of material from ethanol yields 390 mg. of yellow needles melting at 262°-263°.

References:

US4091011,1978,A

2,4-DICHLORO-3,5-DINITROBENZAMIDE Related Search:

安丘市| 云南省| 东光县| 宜州市| 玉溪市| 左云县| 武清区| 雅安市| 金寨县| 长顺县| 通化县| 岑巩县| 蛟河市| 宝兴县| 房山区| 如皋市| 大连市| 吴江市| 宁晋县| 黄骅市| 锦屏县| 湟中县| 康定县| 东明县| 洮南市| 拜城县| 镇远县| 阿城市| 都昌县| 武邑县| 自贡市| 邓州市| 西青区| 井研县| 满洲里市| 镇赉县| 府谷县| 平武县| 青冈县| 读书| 信宜市|