Polyamino acid-catalysed process for the enantioselective...

Details Polyamino acid-catalysed process for the enantioselective... Polyamino acid-catalysed process for the enantioselective...

C - Chemistry, Metallurgy

07

D

C07D 301/14 (2006.01) C07B 33/00 (2006.01) C07D 303/32 (2006.01) C07D 303/48 (2006.01)

Patent

CA 2395913

A novel process makes it possible to epoxidize .alpha.,.beta.-unsaturated enones or .alpha.,.beta.-unsaturated sulphones in the presence of a water-soluble base, of an oxidant, of water, of an organic solvent which is immiscible or has only limited miscibility with water, of a preactivated diastereomer- and enantiomer-enriched homo-polyamino acid as catalyst, and a specific phase-transfer catalyst as cocatalyst with high conversions and enantiomeric excesses.

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