work has been done for the synthesis of novel trithiocarbonate and dithioester for RAFT polymerization. In general, esters are common intermediates in natural product chemistry due to their stability and accessibility for easy interconversion . The traditional methods 9 to get the ester is by treating the acid chloride and primary alcohol in presence of base, triethylamine or by coupling of acid with alcohol in presence of imides (DCC or EDC). Though most of these methods require heating or longer reaction time and tedious workup and, in some case, the dithiocarbonate and dithioester functionalities in oxalyl chloride or thionyl chloride are very susceptible, in view of the synthetic importance of esters in particular having trithiocarbonate and dithio ester. It is desirable to have a general and convenient methodology for their synthesis especially, from readily available materials, such as acids, halides and mesylate.