Highly efficient proline ester-based nickel catalysts for Michael addition of thiophenols to α,β-enones

Way Zen Lee, Chien Wei Chiang, Girish M. Kulkarni, Ting Shen Kuo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Two N3O2 pentadentate ligands, BMPP and BPPP, were prepared for synthesizing highly efficient nickel catalysts, [Ni(BMPP)(CH 3CN)](ClO4)2 (1) and [Ni(BPPP)(CH 3CN)](BPh4)(ClO4) (2), for thia-Michael addition of thiophenols to α,β-enones. X-ray structures of 1 and 2 revealed that a labile CH3CN molecule was bound to the nickel center of the catalysts. ESI-MS spectroscopy indicated that thiolate replaced the bound CH3CN molecule and coordinated to the nickel center during the catalytic cycle.

Original languageEnglish
Pages (from-to)245-250
Number of pages6
JournalJournal of the Chinese Chemical Society
Volume60
Issue number3
DOIs
Publication statusPublished - 2013 Mar 1

Keywords

  • Conjugate addition
  • Nickel complexes
  • Proline derivatives
  • Pyridine derivatives
  • Thia-Michael addition

ASJC Scopus subject areas

  • Chemistry(all)

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