Ruthenium catalyzed asymmetric transfer hydrogenation based on chiral P,N,O Schiff base ligands and crystal structure of a ruthenium(II) complex bearing chiral P,N,O Schiff base ligands

Hoi Lun Kwong, Wing Sze Lee, Tat Shing Lai, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

A ruthenium catalyst, generated in situ by heating the chiral P,N,O Schiff base ligand L (L = (S)-Ph2PC6H4C=NCHPhCH2OH) with Ru(DMSO)4Cl2in 2-propanol, is active for asymmetric transfer hydrogenation with best enantioselectivity up to 81%. A ruthenium complex of formula RuL2Cl2is prepared and its crystal structure revealed that the two chiral P,N,O Schiff ligands are in meridional configuration. This complex is also an active catalyst for asymmetric transfer hydrogenation. However, the '[Ru(DMSO)4]Cl2+ chiral P,N,O ligand' protocol displays better enantioselectivity.
Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalInorganic Chemistry Communications
Volume2
Issue number2
DOIs
Publication statusPublished - 1 Jan 1999
Externally publishedYes

Keywords

  • Crystal structures
  • Ruthenium complexes
  • Schiff base ligand complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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