An immobi
lized Co (II) Schiff base complex supported on multi-wall
carbon nanotubes was synthesized
and characterized using Fourier transform
infrared spectroscopy, X-ray diffraction, scanning
electron microscopy,
q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0CDoQFjAI&url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEnergy-dispersive_X-ray_spectroscopy&ei=8whJVfW_KMv4UJvQgOAH&usg=AFQjCNGukh_d_Co5x-jjjV9UjtGctkEYiA&sig2=ZreZksv_Yb7i3fliKYAfjg&bvm=bv.92291466,d.bGQ" title="Link to external resource: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0CDoQFjAI&url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEnergy-dispersive_X-ray_spectroscopy&ei=8whJVfW_KMv4UJvQgOAH&usg=AFQjCNGukh_d_Co5x-jjjV9UjtGctkEYiA&sig2=ZreZksv_Yb7i3fliKYAfjg&bvm=bv.92291466,d.bGQ" target="_blank">energy-dispersive X-ray spectroscopy, thermogravimetric analysis
and inductively coupled plasma mass spectrometry. It was shown that the supported complex is a facile, eco-friendly, recyclable, reusable
and green catalyst for three-component condensation of
line-library/content/render" xmlns:mml="http://www.w3.org/1998/Math/MathML" id="aoc3560-eo-2001">2-naphthol and acetamide with various aldehydes for the synthesis of 1-amidoalkyl-2-naphthol derivatives under solvent-free conditions. Also, in a further study, the catalytic app
lication was studied in the synthesis of tetrahydrobenzo[
b]pyran derivatives via the
condensation reaction of
line-library/content/render" xmlns:mml="http://www.w3.org/1998/Math/MathML" id="aoc3560-eo-2002">malononitrile and line-library/content/render" xmlns:mml="http://www.w3.org/1998/Math/MathML" id="aoc3560-eo-2003">dimedone with several aromatic aldehydes. The procedures suggested here for the synthesis of 1-amidoalkyl-2-naphthol
and tetrahydrobenzo[
b]pyran derivatives offer several advantages, such as stabi
lity, recyclabi
lity
and eco-friend
liness of the catalyst, simple experimental conditions, short reaction times, high to excellent yields
and easy work-up.