An Approach to Synthesis of 3-Aryl-2-Oxazolidinones and In Situ ‘Click’ Assembly of 1,2,3-Triazole Oxazolidinones

A facile and efficient addition of isocyanates with epoxides in the presence of MgI2 etherate was reported in good yields. The corresponding 2-oxazolidinone could be easily converted into 1,2,3-triazole-oxazolidinone by click reaction in excellent yield.