All the chemicals were purchased from Sigma Aldrich and were used as received. The compounds synthesized by the general procedure described below and were characterised by mass spectrometry and 1H and 13C NMR spectra recorded on 600 MHz JEOL NMR spectrometer in either CDCl3 or DMSO-d6 with TMS as an internal reference at Central University of Punjab, Bathinda (1H NMR: TMS at 0.00 ppm, CDCl3 at 7.26 ppm, DMSO-d6 at 2.5 ppm; 13C NMR: CDCl3 at 77.16 ppm, DMSO-d6 at 39.52 ppm). The spectroscopic data of all the synthesized compounds are consistent with the reported datas.42 (link)
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