International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 7 3 2017 03 18 A mild and efficient method for the preparation of substituted Benzimidazole derivatives from o-phenylene diamine and various aromatic aldehydes catalysed by cation exchange resins 40 43 EN H. Devnani 1 Department of Chemistry, Dayalbagh Educational Institute, Agra - 282005, India S. Ansari 2 Department of Chemistry, Dayalbagh Educational Institute, Agra - 282005, India S.P. Satsangee 3 Department of Chemistry, Dayalbagh Educational Institute, Agra - 282005, India Meher Jagamohan 1 Department of Chemical Engineering, National Institute of Technology, Raipur-492010, Chhattisgarh, India Mazumdar Bidyut 2 Department of Chemical Engineering, National Institute of Technology, Raipur-492010, Chhattisgarh, India Dixit Neena 3 Department of Chemical Engineering, National Institute of Technology, Raipur-492010, Chhattisgarh, India Keshav Seema 4 Department of Chemical Engineering, National Institute of Technology, Raipur-492010, Chhattisgarh, India Keshav Amit 5 Department of Chemical Engineering, National Institute of Technology, Raipur-492010, Chhattisgarh, India Savant Mahesh M. 1 Department of Industrial Chemistry, Shree M. & N. Virani Science College, Kalawad Road, Rajkot, India Patel Ramesh N. 2 Department of Chemistry, Municipal Arts & Urban Science College, Mahesana, Gujarat, India Khistariya Anand V. 3 Department of Industrial Chemistry, Shree M. & N. Virani Science College, Kalawad Road, Rajkot, India S.C. Biswas 1 Rain Forest Research Institute, P.B. 136, Sotai Ali, Jorhat, Assam-785001, India P. Hazarika 2 Rain Forest Research Institute, P.B. 136, Sotai Ali, Jorhat, Assam-785001, India N.B. Dutta 3 Rain Forest Research Institute, P.B. 136, Sotai Ali, Jorhat, Assam-785001, India Sarmah H. 4 Rain Forest Research Institute, P.B. 136, Sotai Ali, Jorhat, Assam-785001, India Dagdale S.R. 1 Department of Physics S. G. B. Amravati University, Amravati, MS - 444 602, India Harde G.B. 2 Department of Physics S. G. B. Amravati University, Amravati, MS - 444 602, India and Department of Physics, Shri Ramnath Ramgopal Lahoti Science College, Morshi, MS - 444905, India Pahurkar V.G. 3 Department of Physics S. G. B. Amravati University, Amravati, MS - 444 602, India Muley G.G. 4 Department of Physics S. G. B. Amravati University, Amravati, MS - 444 602, India Pahurkar V.G. 1 Department of Physics, Sant Gadge Baba Amravati University, Amravati (MS), India-444602 Nagale V.K. 2 Department of Zoology, Sant Gadge Baba Amravati University, Amravati (MS), India-444602 Gambhire A.B. 3 Department of Chemistry, Shri Anand College of Science, Pathardi, Ahmednagar (MS), India-414102 Muley G.G. 4 Department of Physics, Sant Gadge Baba Amravati University, Amravati (MS), India-444602 Mahajan Poonam G. 1 Department of Chemistry, C.H.M. College, Ulhasnagar, India Bambardekar Yogini 2 Department of Chemistry, C.H.M. College, Ulhasnagar, India Thigle Milind M. 3 Department of Chemistry, University of Mumbai, Mumbai – 400 098, India Bahule B.B. 1 Department of Organic Chemistry, Nowrosjee Wadia College, Pune, affiliated to Savitribai Phule Pune University, Pune, MS, India Mhaske C.B. 2 Department of Organic Chemistry, Nowrosjee Wadia College, Pune, affiliated to Savitribai Phule Pune University, Pune, MS, India Kalaskar S.B. 3 Department of Organic Chemistry, Nowrosjee Wadia College, Pune, affiliated to Savitribai Phule Pune University, Pune, MS, India Yadav R.P. 4 Department of Organic Chemistry, Nowrosjee Wadia College, Pune, affiliated to Savitribai Phule Pune University, Pune, MS, India > Short Communication 2017 2 22 2017 03 18 The present method provides a green route for the synthesis of substituted benzimidazoles .The reactions are carried out at moderate temperature and in the presence of cation exchange resins like Amberlyst, Tulsion, Indion. The conversions are quantitative and the products thus obtained are characterised by UV, IR and PMR spectroscopic methods. Copyright@ International Science Community Association