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900768

Sigma-Aldrich

Berkessel-Katsuki epoxidation catalyst

≥98%

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Synonym(s):
Ti-Berkessel-Katsuki ligand complex, Titanium cis-1,2-diaminocyclohexane salalen catalyst
Empirical Formula (Hill Notation):
C64H40F20N4O6Ti2
CAS Number:
2055468-23-8
Molecular Weight:
1436.73

Quality Level

100

Assay

≥98%

form

powder or crystals

reaction suitability

core: titanium
reagent type: catalyst

Related Categories

Application

Developed by Albrecht Berkessel′s lab, this is the first catalyst that allows catalytic enantioselective epoxidation of non-conjugated terminal double bonds with hydrogen peroxide as the oxidant. Eradicating multiple steps and kinetic resolution, this pre-formed chiral ligand-Ti2O2 catalyst complex provides a one-step route to enantiopure epoxides that are important intermediates for synthesis of bioactive compounds. Catalyst is recyclable under some conditions. For best results, pentafluorobenzoic acid P5360 or tetra-n-butylammonium hydrogensulfate 155837 is recommended as a co-catalyst.

Other Notes

Titanium cis-1,2-Diaminocyclohexane Salalen Catalysts of Outstanding Activity and Enantioselectivity for the Asymmetric Epoxidation of Nonconjugated Terminal Olefins with Hydrogen Peroxide

related product

Product No.
Description
Pricing

900770

Berkessel ligand, 98%

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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