Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Organic
Reexamination Certificate
2007-04-24
2007-04-24
Sellers, Robert (Department: 1712)
Catalyst, solid sorbent, or support therefor: product or process
Solid sorbent
Organic
C525S430000, C549S523000, C549S531000, C549S548000
Reexamination Certificate
active
10926458
ABSTRACT:
The invention relates to a novel process that makes it possible to epoxidize α,β-unsaturated enones or α,β-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.
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Geller Thomas
Krüger Christa Maria
Militzer Hans-Christian
Lanxess Deutschland GmbH
Miller Michael A.
Sellers Robert
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