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-Acetylbenzimidazole
18773-95-0

2-Acetylbenzimidazole synthesis

9synthesis methods
Add KMnO4 in batches to 2-(α-hydroxyethyl)benzimidazole, and finally react to obtain 2-Acetylbenzimidazole.
-

Yield:18773-95-0 100 %

Reaction Conditions:

with acetic anhydride at 20;

Steps:

4.4.3.12. 1-(1H-Benzo[d]imidazole-1-yl)ethan-1-one (3l)

Benzimidazole(0.20 g, 1.7 mmol), Ac2O (3.5 mL, 37.0 mmol) and AcOH (5.0 mL,87.3 mmol) were stirred at RT for 0.5 h. The reaction mixture wasconcentrated under reduced pressure, and then azeotroped with PhMe(x3) to give 1-(1H-benzo[d]imidazole-1-yl)ethan-1-one (270 mg,quant.) as an off-white solid.1H NMR (600 MHz, DMSO-d6) 8.89 (s, 1H), 8.17 (d, J = 7.5 Hz, 1H), 7.76 (d, J = 7.9 Hz, 1H), 7.44-7.35 (m, 2H), 2.75 (s, 3H); 13C NMR(151 MHz, DMSO-d6) 169.1, 144.2, 143.7, 131.2, 125.3, 124.6, 120.0,115.2, 23.7; LCMS m/z 161.0 [M+H]+.

References:

Atkinson, Benjamin N.;Willis, Nicky J.;Zhao, Yuguang;Patel, Chandni;Frew, Sarah;Costelloe, Kathryn;Magno, Lorenza;Svensson, Fredrik;Jones, E. Yvonne;Fish, Paul V. [European Journal of Medicinal Chemistry,2023,vol. 251,art. no. 115132]

2-Acetylbenzimidazole Related Search:

丰县| 丰原市| 治多县| 琼中| 岑溪市| 宜章县| 元氏县| 汉寿县| 大名县| 嘉兴市| 克山县| 那坡县| 卫辉市| 雷波县| 洪洞县| 北辰区| 青铜峡市| 彰武县| 平凉市| 游戏| 阿拉善左旗| 搜索| 绵竹市| 大田县| 汽车| 武清区| 汉寿县| 佛教| 通城县| 合肥市| 海晏县| 青冈县| 辛集市| 顺昌县| 习水县| 孝义市| 大丰市| 博乐市| 苍溪县| 福贡县| 隆德县|