An Efficient Approach for the One-Pot Synthesis of Ethyl 4-Oxo-4H-benzo[d][1,3]oxazine-2-carboxylates
作者:Farzad Nikpour、Mahnaz Sharafi-Kolkeshvandi、Asrin Bahmani
DOI:10.3987/com-11-12318
日期:——
Simple one-pot synthesis of ethyl 4-oxo-4H-benzo[d][1,3]oxazine-2-carboxylates is described by condensation reaction of anthranilic acid derivatives with ethyl 2-chloro-2-oxoacetate in CHCl3. High yields of the products obtain in high purity with simple work-up.