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Paper | Regular issue | Vol 102, No. 5, 2021, pp.941-953
Published online, 22nd March, 2021
DOI: 10.3987/COM-21-14430
Rhodium(I) N-Heterocyclic Carbene Complexes as Catalysts for the Anti-Markovnikov Hydroaminations of Styrene

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

*Department of Chemistry and Chemical Process Technologies, Vocational School of Higher Education, Adiyaman University, 02040-Adıyaman, Turkey


A series of new rhodium(I) complexes with benzimidazole based N-heterocyclic carbene (NHC) ligand were synthesized by reactions of benzimidazolium salts with [Rh(OMe)COD]2. The characterization of rhodium(I) complexes with the general formula [RhCl(NHC)(η4-1,5-cyclooctadiene)] was done by physicochemical and spectroscopic methods. All the synthesized complexes were tested as catalysts in the intermolecular hydroamination reactions between styrene with aromatic amines in ionic liquid. All of these complexes tested here are catalytically active for the intermolecular hydroamination of styrene with aromatic amines in ionic liquid. The anti-Markovnikov addition products were obtained selectively by using 1 mol% of the rhodium complex.