作者:Sadhu Srinivas Rao
DOI:10.14233/ajchem.2017.20593
日期:——
2-(1-Chloroethyl)-1H-benzimidazole on condensation with 2-mercaptobenzimidazole in methanol using triethylamine as a base under reflux for 3 h yielded 2-((1-(1H-benzimidazol-2-yl)ethyl)thio)-1H-benzimidazole which on alkylation using two equivalent of alkylating agent under phase transfer catalyst conditions give N,N’-dialkylbisbenzimidazole sulphides. Upon oxidation with H2O2 in acetic acid under reflux for 2 h gave N,N’-dialkylbisbenzimidazole sulphones which are analogues of prazoles.
在甲醇中使用三乙胺作为碱,在回流条件下反应3小时,将2-(1-氯乙基)-1H-苯并咪唑与2-巯基苯并咪唑缩合,得到2-((1-(1H-苯并咪唑-2-基)乙基)硫)-1H-苯并咪唑。在相转移催化剂条件下使用两当量的烷基化剂进行烷基化,得到N,N'-二烷基双苯并咪唑硫化物。在乙酸中使用过氧化氢氧化回流2小时,得到N,N'-二烷基双苯并咪唑砜,这些化合物是普拉唑类似物。