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A Highly Effective Sulfamic Acid/Methanol Catalytic System for the Synthesis of Benzimidazole Derivatives at Room Temperature |
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| Authors: | Zhan-Hui Zhang Tong-Shuang Li Jian-Jiong Li |
| Affiliation: | (1) The College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China |
| Abstract: | Summary. Sulfamic acid/methanol was found to be an efficient catalytic system for the synthesis of benzimidazole compounds through the condensation of o-phenylenediamine with orthoester in high yields at room temperature. |
| Keywords: | . Benzimidazole o-Phenylenediamines Orthoesters Sulfamic acid/methanol system Synthesis. |
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