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

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.

4H-chrmoene, boron trifluoride, nanocatalyst, multicomponent reaction, coconut shell