Novel N-coordinate half-sandwich ruthenium(II) arene complexes bearing sulfonamide fragments: Catalytic activities in the TH of acetophenone derivatives

Kayaci N., DAYAN S., Ozpozan N.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1099, ss.446-452, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1099
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.molstruc.2015.06.082
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.446-452
  • Anahtar Kelimeler: Transfer hydrogenation, Sulfonamide, Ruthenium, N-coordinate, Synthesis, Characterization, ASYMMETRIC TRANSFER HYDROGENATION, LIGANDS, KETONES, SILICA, ATH
  • Erciyes Üniversitesi Adresli: Evet

Özet

The novel cationic N-coordinate ruthenium(II)/arene complexes (6-10) were prepared from the starting complex [RuCl2(p-cymene)](2) dimer. The structures of the [(p-cymene)RuLCl]Cl (L = N-arenesulfonyl-4,5-dimethyl-o-phenylenediamines) complexes were elucidated by FT-IR, H-1-NMR,C-13-NMR, ionic conductivity techniques, and elemental analysis methods. The 6-10 complexes were applied as catalyst in the transfer hydrogenation (TH) of ketones. The catalytic tests showed that all the complexes are moderate catalysis precursors. Especially, {[N-benzenesulfonyl-4,5-dimethyl-o-phenylenediamine]-(p-cymene)-di-chloro-ruthenium(II)} (8) and {[N-4-chlorobenzenesulfonyl-4,5-dimethyl-o-phenylenediamine]-(p-cymene)-di-chloro-ruthenium(II)} (9) compounds were found to be a good catalysts in comparison to the others giving the corresponding alcohols in a good turnover frequency value of 1534 and 1731 h(-1), respectively. (C) 2015 Elsevier B.V. All rights reserved.