Enantioselective epoxidations catalyzed by zeolite MCM-22 encapsulated Jacobsen's catalyst

Godefroy Gbery, A. Zsigmond, Kenneth J. Balkus

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A novel method for the encapsulation of homogeneous catalysts within the supercages (7.1 × 18.2 Å) of zeolite MCM-22 has been developed. By way of example, the well known asymmetric oxidation catalyst (R,R)-N,N-bis(3,5-di-tert-butylsalicylidedene)-1,2- cyclohexanediaminemanganese(III) chloride, a.k.a Jacobsen's catalyst, was occluded in MCM-22 during the zeolite synthesis. This ship-in-a-bottle complex exhibited both higher activity and enantioselectivity for the epoxidation of α-methylstyrene compared with the homogeneous catalyst.

Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalCatalysis Letters
Volume74
Issue number1-2
DOIs
Publication statusPublished - Jun 2001

Fingerprint

Zeolites
epoxidation
Epoxidation
Multicarrier modulation
catalysts
Catalysts
bottles
Enantioselectivity
Bottles
ships
Encapsulation
Chlorides
Ships
chlorides
Oxidation
oxidation
synthesis

Keywords

  • Jacobsen's catalyst
  • MCM-22
  • Oxidation catalysis
  • Ship-in-a-bottle complex

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Enantioselective epoxidations catalyzed by zeolite MCM-22 encapsulated Jacobsen's catalyst. / Gbery, Godefroy; Zsigmond, A.; Balkus, Kenneth J.

In: Catalysis Letters, Vol. 74, No. 1-2, 06.2001, p. 77-80.

Research output: Contribution to journalArticle

Gbery, Godefroy ; Zsigmond, A. ; Balkus, Kenneth J. / Enantioselective epoxidations catalyzed by zeolite MCM-22 encapsulated Jacobsen's catalyst. In: Catalysis Letters. 2001 ; Vol. 74, No. 1-2. pp. 77-80.
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