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Title
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A Highly Efficient and Practical Synthesis of Chromene Derivatives Using Vanadium-Oxo Tetrapyridinoporphyrazine [VO(TPPA)]
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Type
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Presentation
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Keywords
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Chromene”, “Multi-component Reaction”, “Tetrapyridoporphyrazine
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Abstract
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Chromenes constitute chemically important class of heterocyclic compounds having diverse biological and chemical importance. Development of environmentally benign, efficient and economical methods for the synthesis of chromenes remains a significant challenge in synthetic chemistry. Therefore, synthesis of chromenes has attracted enormous attention from medicinal and organic chemists [1]. Tetrapyridoporphyrazines containing four pyridinoid rings in place of four benzenoid. Tetrapyridoporphyrazine derivatives are important commercial pigments and dyes for a number of years, and their chemical and heat stabilities are well known. In the last decade have been utilized in synthesis [2]. In continuation of our interest in the application of heterogeneous catalyst in organic transformation, we report the simple and efficient procedure for one pot synthesis of tetrahydro-4H-chromene derivatives using [VO(TPPA] as catalyst in EtOH under reflux condition (Scheme I).
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Researchers
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avat (arman) Taherpour (Third Researcher), Maliheh Safaiee (Second Researcher), (First Researcher)
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