Application of 615-16-7, The chemical industry reduces the impact on the environment during synthesis 615-16-7, name is 2-Hydroxybenzimidazole, I believe this compound will play a more active role in future production and life.
Step 1: (0389) 1H-benzimidazol-2(3H)-one 19-a (500 mg, 3.73 mmol) was added into anhydrous aluminum chloride (1.98 g, 14.9 mmol) and tetrachloroethane (3 ml). Chloroacetyl chloride (843 mg, 7.46 mmol) dissolved in tetrachloroethane (3 ml) was added dropwise thereto under ice bath followed by stirring at 100 C. for 1 hour. The mixture was cooled to room temperature, ice and 4N hydrochloric acid (20 ml) were added sequentially followed by stirring for 6 hours, the precipitated solid was filtered, the filter cake was slurried in isopropanol, filtered, and dried to give 19-b as an off-white solid (730 mg, yield: 93%). EI-MS (m/z): 210.
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-Hydroxybenzimidazole, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES; SUZHOU VIGONVITA LIFE SCIENCES CO., LTD.; TOPHARMAN SHANDONG CO., LTD.; JIANG, Hualiang; WANG, Zhen; LI, Jianfeng; ZHANG, Rongxia; HE, Yang; LIU, Yongjian; BI, Minghao; LIU, Zheng; TIAN, Guanghui; CHEN, Weiming; YANG, Feipu; WU, Chunhui; WANG, Yu; JIANG, Xiangrui; YIN, Jingjing; WANG, Guan; SHEN, Jingshan; (70 pag.)US2017/158680; (2017); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem