Microwave assisted nano-coconut shell-BF3 as heterogenous new catalyst for multicomponent synthesis of 4H-chromene derivatives
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 513
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شناسه ملی سند علمی:
NEWCONF04_105
تاریخ نمایه سازی: 6 مهر 1397
چکیده مقاله:
The reaction of nano-coconut shell and boron trifluoride in diethyl ether gave nano-coconut shell-BF3. Also nanococonut shell-BF3 has been characterized by Fourier transform infrared spectroscopy (FT-IR), Field Emission Scanning Electron Microscopy (FESEM) and transmission electron microscopy (TEM). Nano-coconut shell-BF3 hasbeen applied as a new catalyst for synthesis of 4H-chromene derivatives from the simple one-pot reaction between aryl aldehydes, cyclic 1,3-diketone and malononitrile. Cleanliness, simple methodology, short time, and excellent yields of products are some advantages of this method.
کلیدواژه ها:
نویسندگان
Hamid Reza Molaei
Department of Chemistry, Sarvestan Branch, Islamic Azad University, Sarvestan, Iran
Bahareh Sadeghi
Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran