Preparation of novel imidazo[1,2-a]pyrimidine derived schiff bases at conventional and microwave heating conditions

Abstract

In this study, novel imidazo [1,2-a]pyrimidine derived schiff bases were synthesized via imine formation reaction and characterized with various spectral analysis such as FT-IR, 1 H NMR, 13 C NMR and MS. In addition to conventional heating reactions, microwave-assisted synthesis was applied to the C=N bond formation step. The reactions were carried out at reflux temperature in toluene and magnesium sulfate as drying agent. While final products were obtained at 10-36 h reaction times with moderate to good yields at conventional heating conditions, synthesized at 45-120 min reaction times with good yields at microwave heating conditions. Results showed that microwave-assisted synthesis which is a well-known green process for the synthesizing organic molecules provides to obtain shorter reaction times and higher yields in our study.