E f f i c i e n t S y n t h e t i c M e t h o d f o r b -E n a m i n o E s t e r sAbstract: b-Keto esters react with a variety of amines in the presence of 0.1 equivalents of acetic acid without any solvents under ultrasound to give good yields of the corresponding b-enamino esters.
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