Journal
TETRAHEDRON LETTERS
Volume 51, Issue 39, Pages 5195-5199Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2010.07.132
Keywords
Catalysis; Heterocycles; Nanoporous; Heterogeneous; Benzimidazoles
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) under the Strategic Program for Building an Asian Science and Technology Community Scheme
- World Premier International Research Center (WPI) Initiative on Materials Nanoarchitectonics, MEXT, Japan
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Herein we demonstrate for the first time, the synthesis of benzimidazoles through the coupling of aldehydes with o-phenylenediamine by using highly acidic nanoporous aluminosilicate with 3D structure and cage-type pores as the catalyst. The catalyst resulted in excellent yields in short reaction times presumably due to its high acidity, large pore diameter, high surface area, and cage-type 3D porous structure. (c) 2010 Elsevier Ltd. All rights reserved.
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