Title of article :
An efficient facile and one-pot synthesis of 2-arylsubstituted benzimidazole derivatives using 1-methyl-3-(2-oxyethyl)-1H-imidazol-3-ium-borate sulfonic acid as a recyclable and highly efficient ionic liquid catalyst at green condition
Author/Authors :
Sajjadifar ، Sami Department of Chemistry - Payame Noor University , Amini ، Issa Department of Chemistry - Payame Noor University , Jabbari ، Hadi Department of Chemistry - Payame Noor University , Pouralimardan ، Omidali Department of Chemistry - Ayatollah Alozma Borujerdi University , Fekri ، Mohammad Hossein Department of Chemistry - Ayatollah Alozma Borujerdi University , Pal ، Kaushik Department of Nanotechnology - BIHER Research Park - Bharath University
Abstract :
1-Methyl-3-(2-oxyethyl)-1H-Imidazol-3-ium-Borate Sulfonic Acid ([MOEI]-BSA) was easily prepared and used as a new and highly efficient solid acid catalyst for the synthesis of benzimidazole derivatives with high isolated yields. Various substituted benzimidazoles were synthesized by a combination of o-phenylenediamines and aldehydes in the presence of [MOEI]-BSA with excellent yields in water and under a mild and green reaction conditions. This method is also applicable for precursors such as aromatic and unsaturated aldehydes and o-phenylenediamines. Addition of organic part to BSA and synthesis of [MOEI]-BSA as a new Bronsted acidic ionic liquid (BAIL) improved the efficiency of this catalyst.
Keywords :
1 , Methyl , 3 , (2 , oxyethyl) , 1H , imidazol , 3 , ium , borate sulfonic acid , [MOEI] , BSA , BAIL , solid acid , benzimidazole synthesis , green chemistry
Journal title :
Eurasian Chemical Communications
Journal title :
Eurasian Chemical Communications
