Synthesis of some novel N-alkyl/acyl/aroyl 2-(chroman/6-bromochroman-2-yl)-1H-benzimidazoles using ionic liquids and their antibacterial activity
作者:Changdev Namdev Raut、Sandeep Madhukar Bagul、Ravindra Ashok Janrao、Sanjay Dashrath Vaidya、Bobba Venkata Siva Kumar、Pramod Pandurang Mahulikar
DOI:10.1002/jhet.360
日期:——
of some novel N‐substituted 2‐(chroman/6‐bromochroman‐2‐yl)‐1H‐benzimidazoles by the condensation of 3,4‐dihydro‐2H‐chroman‐2‐carboxylic acid and 6‐bromo‐3,4‐dihydro‐2H‐chroman‐2‐carboxylic acid with o‐phenylenediamine in ionic liquid (IL) [bmim]BF4 and subsequent reactions at the benzimidazole‐NH with different types of electrophiles in ILs [bmim]BF4 = 1‐butyl‐3‐methylimidazolium tetrafluoroborate
通过3,4-二氢-2 H-色氢-2-羧酸和6-溴-3的缩合反应合成一些新颖的N-取代的2-(chroman / 6-bromochroman-2-yl)-1 H - benzimidazoles离子液体(IL)[bmim] BF 4中的邻苯二胺与4,4-二氢-2 H-铬基-2-羧酸和邻苯二胺的反应以及随后在苯并咪唑-NH中不同类型的亲电试剂在ILs中的反应[bmim] BF 4 = 1-丁基-3-甲基咪唑四氟硼酸酯,[bmim] PF 6 = 1-丁基-3-甲基咪唑六氟磷酸盐和[buPy] BF 4报道了在氢氧化钠作为碱的存在下,=四氟硼酸丁基吡啶鎓。筛选所有合成的化合物的抗菌活性。与作为参考标准的头孢氨苄相比,某些化合物对金黄色葡萄球菌和鼠伤寒沙门氏菌显示出令人鼓舞的抗菌活性。J.杂环化学。(2010)。