Gallocyanine as An Efficient Catalyst for Synthesis of Benzimidazoles in Aqueous Ethanol
The benzimidazole derivatives have been obtained catalyzed by gallocyanine. A wide range of aromatic aldehydes easily undergo condensation with substituted o-phenylendiamine under mild conditions to afford the target molecules in excellent yields. The products were obtained in 80–93% yields in 30–80...
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| Main Authors: | , , , , , |
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| Language: | English |
| Published: |
Science Faculty of Chiang Mai University
2019
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| Subjects: | |
| Online Access: | http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=10220 http://cmuir.cmu.ac.th/jspui/handle/6653943832/66050 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | The benzimidazole derivatives have been obtained catalyzed by gallocyanine. A wide range of aromatic aldehydes easily undergo condensation with substituted o-phenylendiamine under mild conditions to afford the target molecules in excellent yields. The products were obtained in 80–93% yields in 30–80 min. The method has several advantages such as use of green solvent, easy work-up, excellent yield and avoiding use of inconvenient preparation of catalyst. Meanwhile, the catalyst gallocyanine is a kind of inexpensive catalyst, which might be applied to broad green catalytic system. |
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