Sulfur Extrusion Reaction: A Versatile Cyclic β-Enamino Ester Synthesis from Secondary α-Bromo Esters

P. Marchand; M.-C. Fargeau-Bellassoued; C. Bellec; G. Lhommet

doi:10.1055/s-1994-25648

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Synthesis 1994; 1994(11): 1118-1120
DOI: 10.1055/s-1994-25648

short paper

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Sulfur Extrusion Reaction: A Versatile Cyclic β-Enamino Ester Synthesis from Secondary α-Bromo Esters

P. Marchand^* , M. -C. Fargeau-Bellassoued, C. Bellec, G. Lhommet

^*Laboratoire de Chimie des Hétérocycles-ERS 73, Université Pierre et Marie Curie, 4, place Jussieu, F-75252 Paris Cedex 05, France

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Publikationsdatum:
25. April 2002 (online)

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Various commercial secondary α-bromo esters 2 react with five-membered thiolactams 1 in a direct sulfur extrusion reaction to give N-alkylated tetrasubstituted cyclic β-enamino esters 4 in good yields.