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 6-Bromo-N,N-dimethylnicotinamide
869640-49-3

6-Bromo-N,N-dimethylnicotinamide synthesis

4synthesis methods
-

Yield:869640-49-3 90%

Reaction Conditions:

with N-ethyl-N,N-diisopropylamine;N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate in dichloromethane at 20;Inert atmosphere;

Steps:

8 6-bromo-N,N-dimethylnicotinamide

6-bromo-N,N-dimethylnicotinamide (0260) To a solution of 6-bromopyridine-3-carboxylic acid (200 mg, 0.99 mmol) in dicholormethane (5 mL) were added dimethylamine hydrochloride (97 mg, 1.19 mmol), HATU (564 mg, 1.48 mmol) and DIEA (639 mg, 4.94 mmol) at room temperature. The resulting mixture was stirred overnight at room temperature and then was quenched by the addition of water (20 mL). The reaction mixture was extracted with ethyl acetate (50 mL×3). The organic phases were combined, washed with brine and dried over sodium sulfate. The solvent was removed under reduced pressure and the residue was purified by flash chromatography eluting with ethyl acetate in hexane (0% to 50% gradient) to yield 6-bromo-N,N-dimethylpyridine-3-carboxamide as colorless oil (203 mg, 90%). MS: m/z=229.0 [M+H]+.

References:

US2016/376283,2016,A1 Location in patent:Paragraph 0259; 0260

6-Bromo-N,N-dimethylnicotinamide Related Search:

广汉市| 常宁市| 瑞金市| 新乐市| 东乡县| 松潘县| 沙湾县| 桦川县| 蚌埠市| 崇义县| 吉木乃县| 富阳市| 专栏| 竹北市| 乐东| 巨鹿县| 康保县| 新绛县| 永济市| 理塘县| 伊金霍洛旗| 托克逊县| 顺义区| 哈密市| 丹巴县| 宁安市| 阳山县| 象山县| 绥阳县| 修水县| 南宫市| 华蓥市| 舒兰市| 皋兰县| 南召县| 临猗县| 绍兴市| 惠州市| 房山区| 清徐县| 广东省|