Comparative study of "ship-in-a-bottle" and anchored heterogenized Rh complexes

A. Zsigmond, Krisztián Bogár, F. Notheisz

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Heterogenized rhodium complexes were prepared by two different methods ("ship-in-a-bottle" and anchoring methods) and the catalysts were used in the hydrogenation of simple and prochiral alkenes. The "ship-in-a-bottle" type heterogenized rhodium complexes were active in the hydrogenation of hex-1-ene, cyclohexene, and 1-methylcyclohexene. At the same time the heterogenized catalyst had all the expected advantages of the heterogeneous system, namely easy handling and recyclability. The anchored catalyst could also catalyze the same hydrogenation reactions and showed all the advantages of the heterogeneous catalysts. However, the latter one was much more active in the above hydrogenation reactions than the "ship-in-a-bottle" type catalysts. Moreover, the anchored catalyst showed higher ee in the enantioselective hydrogenation of trans-2-methylpent-2-enoic acid than its encapsulated counterpart.

Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalJournal of Catalysis
Volume213
Issue number1
DOIs
Publication statusPublished - 2003

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bottles
Bottles
ships
Ships
Hydrogenation
hydrogenation
catalysts
Catalysts
Rhodium
rhodium
Alkenes
alkenes
Olefins
acids
Acids

Keywords

  • Anchored catalysts
  • Encapsulated catalysts
  • Heterogenized Rh complexes
  • Olefin hydrogenation

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Comparative study of "ship-in-a-bottle" and anchored heterogenized Rh complexes. / Zsigmond, A.; Bogár, Krisztián; Notheisz, F.

In: Journal of Catalysis, Vol. 213, No. 1, 2003, p. 103-108.

Research output: Contribution to journalArticle

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N2 - Heterogenized rhodium complexes were prepared by two different methods ("ship-in-a-bottle" and anchoring methods) and the catalysts were used in the hydrogenation of simple and prochiral alkenes. The "ship-in-a-bottle" type heterogenized rhodium complexes were active in the hydrogenation of hex-1-ene, cyclohexene, and 1-methylcyclohexene. At the same time the heterogenized catalyst had all the expected advantages of the heterogeneous system, namely easy handling and recyclability. The anchored catalyst could also catalyze the same hydrogenation reactions and showed all the advantages of the heterogeneous catalysts. However, the latter one was much more active in the above hydrogenation reactions than the "ship-in-a-bottle" type catalysts. Moreover, the anchored catalyst showed higher ee in the enantioselective hydrogenation of trans-2-methylpent-2-enoic acid than its encapsulated counterpart.

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