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 Sulfometuron-methyl
74222-97-2

Sulfometuron-methyl synthesis

4synthesis methods
Sulfometuron-methyl is produced by reaction of 2-sulfonylisocyanate methylbenzoate with 2-amino-4,6-dimethylpyrimidine.
-

Yield:74222-97-2 98%

Reaction Conditions:

in acetonitrile

Steps:

1 Preparation of 2-[[(4,6-Dimethylpyrimidin-2-yl)aminocarbonyl]aminosulfonyl]benzoic acid, methyl ester
EXAMPLE 1 Preparation of 2-[[(4,6-Dimethylpyrimidin-2-yl)aminocarbonyl]aminosulfonyl]benzoic acid, methyl ester A slurry of 7.0 grams (0.057 moles) of 4,6-dimethyl-2-pyrimidinamine, 6.0 grams (0.092 moles) sodium cyanate, and 13.5 grams (0.057 moles) 2-carbomethoxybenzenesulfonyl chloride in 60 ml acetonitrile was stirred 1 hour at reflux (81°). The reaction was diluted with 60 ml water, allowed to cool to room temperature and filtered. The solid was washed with 20 ml water and dried. There was obtained 16.0 grams (77.0% of theory) of the title compound. The product was 98% pure as assayed by high pressure liquid chromatography. The m.p. and IR spectrum of the title compound were identical to those of an authentic sample prepared as described in U.S. Pat. No. 4,394,506.

References:

E. I. Du Pont de Nemours and Company US4546179, 1985, A

FullText

Sulfometuron-methyl Related Search:

陇川县| 株洲县| 巴中市| 泾阳县| 军事| 大名县| 新巴尔虎右旗| 连城县| 大田县| 新闻| 商南县| 资中县| 湖南省| 赤城县| 都江堰市| 都江堰市| 宝应县| 宜良县| 衡阳县| 沾益县| 津南区| 兴国县| 禹城市| 孟村| 金秀| 安溪县| 沽源县| 临城县| 阳城县| 蒲城县| 望谟县| 玛曲县| 恩平市| 桦南县| 潜山县| 宁晋县| 梧州市| 永顺县| 凌源市| 合阳县| 四川省|