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benzimidazolium dihydrogen phosphate: a novel green catalyst for the preparation of pyrano[2,3-𝑑]pyrimidines and pyrano[3,2-𝑐]chromenes in aqueous media
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نویسنده
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azizi zahra ,haghpanah-kouchesfahani sara ,nawabi safiullah ,daneshvar nader ,shirini frahad ,tajik hassan
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منبع
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chemical methodologies - 2024 - دوره : 8 - شماره : 9 - صفحه:626 -644
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چکیده
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In this study, a novel benzimidazole-based brönsted acidic ionic salt, benzimidazolium dihydrogen phosphate, was synthesized and characterized using mass spectrometry, ft-ir and nmr spectroscopy, as well as icp analysis. the salt demonstrated efficient catalytic properties and reusability in the production of pyrano[2,3-d]pyrimidine and pyrano[3,2-c]chromene derivatives. noteworthy advantages of this approach include the minimal catalyst requirement, straightforward work-up process, brief reaction duration, high yields, and catalyst reusability for four consecutive uses without a significant decrease in efficiency.
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کلیدواژه
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brönsted acidic organic salt ,benzimidazolium dihydrogen phosphate ,pyrano[2 ,3-d]pyrimidines ,pyrano[3 ,2-c]chromenes ,aqueous media
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آدرس
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university of guilan, faculty of chemistry, department of organic chemistry, iran, university of guilan, faculty of chemistry, department of organic chemistry, iran, university of guilan, faculty of chemistry, department of organic chemistry, iran, university of guilan, faculty of chemistry, department of organic chemistry, iran, university of guilan, faculty of chemistry, department of organic chemistry, iran. university campus 2, university of guilan, department of organic chemistry, iran, university of guilan, faculty of chemistry, department of organic chemistry, iran. university campus 2, university of guilan, department of organic chemistry, iran
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پست الکترونیکی
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tajik@guilan.ac.ir
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Authors
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