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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
A Highly Efficient and Practical Synthesis of Chromene Derivatives Using Vanadium-Oxo Tetrapyridinoporphyrazine [VO(TPPA)]
نویسندگان :
Mahtab Moeinimehr ( دانشگاه رازی ) , Maliheh Safaiee ( دانشگاه بوعلی سینا همدان ) , Avat Arman Taherpour ( دانشگاه رازی )
کلید واژه ها :
Chromene،Multi-component Reaction،Tetrapyridoporphyrazine
چکیده مقاله :
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 [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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