Rh soaked in polyionic gel: an effective catalyst for dehydrogenative silylation of ketones.
[Structure: see text] A polyionic gel-soaked Rh catalyst allows the formation of synthetically useful diphenylsilyl (DPS) enols under mild conditions. The reaction proceeds through dehydrogenative silylation of ketones, affording the kinetic silyl enol ether in good to excellent yields. The in situ formed DPS enols were directly involved, without purification, in one-pot aldol and Mannich condensations.
Thiot
Carine
C
Laboratoire de Synthèse Bio-Organique associé au CNRS, Université Louis Pasteur de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France.
Wagner
Alain
A
Mioskowski
Charles
C