Pyridine-Based PCP-Ruthenium Complexes: Unusual Structures and Metal-Ligand Cooperation

Shan Tang, Niklas Von Wolff, Yael Diskin-Posner, Gregory Leitus, Yehoshoa Ben-David, David Milstein

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Metal-ligand cooperation (MLC) by dearomatization/aromatization provides a unique way for bond activation, which has led to the discovery of various acceptorless dehydrogenative coupling reactions. However, most of the studies are based on pincer complexes with a central nitrogen donor. Aiming at exploration of the possibility of MLC by PCP-type pincer complexes, we report herein the synthesis, characterization, structure, and reactivity of pyridine-based PCP-Ru complexes. X-ray structures and DFT calculations indicate a carbenoid character of quaternized pyridine-based PCP-Ru complexes. These complexes undergo dearomatization by direct deprotonation, and the dearomatized complex can react with hydrogen, alcohols, or nitriles to regain aromatization via MLC.

Original languageEnglish
Pages (from-to)7554-7561
Number of pages8
JournalJournal of the American Chemical Society
Volume141
Issue number18
DOIs
Publication statusPublished - Apr 19 2019

Fingerprint

Ruthenium
Pyridine
Aromatization
Metals
Ligands
Nitriles
Regain
Deprotonation
Discrete Fourier transforms
Hydrogen
Alcohols
Nitrogen
Chemical activation
X-Rays
X rays
pyridine

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Pyridine-Based PCP-Ruthenium Complexes : Unusual Structures and Metal-Ligand Cooperation. / Tang, Shan; Von Wolff, Niklas; Diskin-Posner, Yael; Leitus, Gregory; Ben-David, Yehoshoa; Milstein, David.

In: Journal of the American Chemical Society, Vol. 141, No. 18, 19.04.2019, p. 7554-7561.

Research output: Contribution to journalArticle

Tang, Shan ; Von Wolff, Niklas ; Diskin-Posner, Yael ; Leitus, Gregory ; Ben-David, Yehoshoa ; Milstein, David. / Pyridine-Based PCP-Ruthenium Complexes : Unusual Structures and Metal-Ligand Cooperation. In: Journal of the American Chemical Society. 2019 ; Vol. 141, No. 18. pp. 7554-7561.
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