Efficient Synthetic Method for β-Enamino Esters Using Ultrasound
Carlos A. Brandt*, Ana Cláudia M. P. da Silva, Camila G. Pancote, Charles L. Brito, Maria A. B. da Silveira
*Instituto Butantan, Av. Vital Brazil, 1500, 05503-900, São Paulo, SP,
Brazil, Email: cabrandt
usp.br
C. A. Brandt, A. C. M. P. da Silva, C. G. Pancote, C. L. Brito, M. A. B. da Silveira, Synthesis, 2004, 1557-1558.
Abstract
β-Keto esters efficiently react with a variety of amines in the presence of 0.1 equivalents of acetic acid as an inexpensive and environmentally benign catalyst without any solvents under ultrasound to give good yields of the corresponding β-enamino esters.
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Key Words
ultrasound, β-enamino esters, β-keto esters, amines
ID: J66-Y2004-2120
