Published in
Elsevier, Tetrahedron, 9(54), p. 1835-1844
DOI: 10.1016/s0040-4020(97)10391-x
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A Study on the Phase Transfer Catalysed Michael Addition.
Journal article published in 1998 by
Enrique Díez-Barra,
Antonio de la Hoz 
,
Sonia Merino,
Ana Rodríguez,
Prado Sánchez-Verdú
,
Sonia Merino,
Ana Rodríguez,
Prado Sánchez-Verdú
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Abstract
Solvent-free and liquid-liquid PTC conditions have been used for the Michael addition of several enolates to methyl vinyl ketone, chalcone and methyl acrylate. The solvent-free technique affords high yields whereas the liquid-liquid procedure is less efficient but allows enantioselective reactions.