A Green Approach for Efficient Synthesis ofDihydropyrano[c]chromenediones Using CuI NPs as a HeterogeneousCatalyst under Grinding
Publish place: National Seminar on New Technologies in the Nano-Composites
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NANO01_030
تاریخ نمایه سازی: 10 تیر 1396
Abstract:
In the last few years, the use of nanosized heterogeneous catalysts in organic synthesis has proved to be useful in several scientific and technological areas. The good catalytic performance of nanosized catalysts is closely related to the activation of adsorbedcompounds and the reaction rate enhancement, easier work-up, reusability of the catalyst and the environmental friendly reaction conditions [1]. Nanosized copper iodide is one reusable Lewis acid catalyst which has revealed several catalytic activities for the synthesisof organic compounds and others [2-4]. Chromene is a prominent structural motif found in various natural and non-natural products which have been reported to show a wide spectrum of useful biological properties such as antioxidant, anticancer, antimicrobial, and etc. [5, 6].Herein we report a highly efficient and practical method for the synthesis of 4-aryl-3,4- dihydro-2H,5H-pyrano[3,2-c]chromene-2,5-diones (4) via a condensation reaction of Meldrum’s acid (1), aromatic aldehydes (2), and 4-hydroxycoumarin (3) catalyzed by CuI nanoparticles (CuI NPs) under solvent-free grinding
Keywords:
CuI nanoparticles (CuI NPs) , Dihydropyrano[c]chromenediones , Environmentallybenign procedure , Grinding
Authors
Sam Ahmadzadeh-Vatani
Department of Chemistry, East Tehran Branch, Islamic Azad University, P.O. Box ۱۸۷۳۵-۱۳۸, Tehran, Iran
Shahrzad Abdolmohammadi
Department of Chemistry, East Tehran Branch, Islamic Azad University, P.O. Box ۱۸۷۳۵-۱۳۸, Tehran, Iran