Eco-friendly and efficient synthesis of benzimidazole derivatives using iron oxide modified sepiolite catalyst

Eren B., Erdogan G.

Reaction Kinetics, Mechanisms and Catalysis, cilt.107, sa.2, ss.333-344, 2012 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 107 Sayı: 2
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s11144-012-0469-6
  • Dergi Adı: Reaction Kinetics, Mechanisms and Catalysis
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.333-344
  • Anahtar Kelimeler: Benzimidazole, Catalysis, Condensation, Formic acid, Sepiolite
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

A fast, economic, and green synthesis of benzimidazole derivatives using iron oxide modified sepiolite (IMS) as a catalyst has been reported. IMS showed excellent catalytic properties and the reactions completed within 20-30 min to give products in high yield. The adsorption mechanism of formic acid on IMS was studied by infrared (IR) spectroscopy at temperature range 120-400 °C. Thermal desorption of pyridine was followed by IR and thermal analysis techniques to estimate the acidity of IMS. Lewis acid-bound pyridine bands at 1,618-1,631 and 1,443-1,445 cm-1 were observed even after IMS sample were heated above 400 °C. © Akadémiai Kiadó , Budapest, Hungary 2012.