The formation of bright, yellow-colored precipitates confirmed the formation of desired product and then, reaction is allowed to cool down at room temperature. The yellow-colored precipitates were obtained by filtration, washed 2-3 times with acetonitrile (50 mL) to completely remove the unreacted reagents and dried overnight under ambient temperature. Further purification was done using silica-gel column chromatography and the desired product was collected as yellow colored velvety powder with amount 7.51 g (yield = 84%). 77, 130.34, 130.26, 128.81, 128.61, 121.24, 65.59, 31.81, 29.32, 29.21, 28.64, 26.04, 22.63, 14.06 ppm.