| Title: | A green synthesis and antibacterial activity of ferrocene-based thiazole derivatives in choline chloride/glycerol eutectic solvent |
| Author(s): | Zhao D; Liu Y; Li Y; Chen Y; |
| Address: | "College of Chemistry and Chemical Engineering, Bohai University Jinzhou 121013 China bhuzh@163.com. Research Institute of Jinzhou Petrochemical Company Jinzhou 121013 China. School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University Shenyang 110016 China 569180398@qq.com" |
| ISSN/ISBN: | 2046-2069 (Electronic) 2046-2069 (Linking) |
| Abstract: | "In this work, a green Hantzsch synthesis of 4-ferrocenylthiazole derivatives has been accomplished successfully. The Hantzsch reaction between bromoacetylferrocene and various aryl thioureas, 1-alkylindole-3- or 9-alkylcarbazole-3-carbothioamides proceeded efficiently in a deep eutectic solvent (DES) that is, choline chloride/glycerol (ChCl/Gly) (1 : 2 molar ratio) at 80 degrees C, avoiding the use of common volatile organic solvents. Moreover, the DES media could be reused up to three times without any appreciable decrease in the yield. The synthetic strategy has the attractive features such as mild and environmentally benign reaction conditions, experimental simplicity, easy work-up procedure and good yields. Subsequently, a preliminary screening for in vitro antibacterial activities of all these newly-synthesized compounds revealed that the halo-substituted (F, Cl, Br) compounds 3f-h showed significant antibacterial activities against Gram (+) bacterial B. subtilis and Gram (-) E. coli, among which the fluoro-substituted 3f possessed the best activity with the MIC value of 7.8125 mug mL(-1), being higher than the reference drug ciprofoxacin (15.625 mug mL(-1))" |
| Notes: | "PubMed-not-MEDLINEZhao, Di Liu, Yanying Li, Yang Chen, Yu eng England 2022/09/01 RSC Adv. 2022 Aug 9; 12(34):22054-22059. doi: 10.1039/d2ra04587g. eCollection 2022 Aug 4" |
