Microwave assisted nano-coconut shell-BF3 as heterogenous new catalyst for multicomponent synthesis of 4H-chromene derivatives

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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تاریخ نمایه سازی: 6 مهر 1397


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.


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