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Paper | Regular issue | Vol 102, No. 11, 2021, pp.2127-2137
Published online, 19th August, 2021
DOI: 10.3987/COM-21-14519
Ruthenium(II) Complexes with Chelating N-Heterocyclic Carbenes and a Ruthenate(II) Complex as Catalysts for the Anti-Markovnikov Hydroaminations of Styrene

Murat Yiğit,* Yetkin Gök, Özlem Özeroğlu Çelikal, and Beyhan Yiğit

*Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Adiyaman University, 02040-Adıyaman, Turkey


New ruthenium chelate and ruthenate complexes were synthesized through the reaction of benzimidazolium salts and [RuCl2(p-cymene)]2 in toluene and characterized by elemental analysis, 1H NMR and 13C NMR spectroscopy. These ruthenium complexes were tested as catalysts in the intermolecular hydroamination reactions between styrene with aromatic amines in ionic liquid. All of these complexes tested here showed good catalytic activity in these reactions. The hydroamination reactions regioselectively produced anti-Markovnikov addition products in moderate to good yields by using 1 mol% of the ruthenium complex.