Synthesis of N-Formylation of Amines using Various Ion Exchanged Forms of Zeolite-A as Catalysts

Abstract

A simple, convenient and new efficient procedure was utilized for the synthesis of N-Formylation of amines using Zeolite A as a heterogeneous solid acid catalyst. The main advantage of this protocol is less reaction time, high percentage yield, cleaner and easy work up. The synthesized zeolites were characterized by various techniques Viz, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Scanning electron microscopy (SEM). The synthesized products were characterized by HNMR and Fourier-transform infrared spectroscopy (FTIR) techniques. Furthermore the catalyst can be recovered conveniently and reused efficiently.

Titania-zeolite composite for tetracycline photocatalytic degradation under visible light: A comparison between doping and ion exchange

“…S2 , as the weight percentage of TiO 2 increased the intensity of the main peaks of BEA decreased because the amount of BEA in the photocatalyst decreased and this was reported elsewhere [ 17 ]. The intensity of the 60FeTZ spectrum was lower than those for the 60TZ photocatalyst, although they had the same weight percentage of TiO 2 , this observation was reported by Bhat et al [ 41 ] and was a result of metal ion exchange. The FTIR of the Titania photocatalysts showed a change in the shape of the spectrum between 500 cm −1 and 900 cm −1 caused by the strong interaction between TiO 2 and the porous surface of the zeolite through Ti–O–Si bonds [ 17 , 42 ].…”