Half-sandwich Ru (II) complexes containing (N, O) Schiff base ligands: Catalysts for base-free transfer hydrogenation of ketones.

Satheesh, CE and Sathish Kumar, PN and Kumara, PR and Karvembu, R and Hosamani, A and Nethaji, M (2019) Half-sandwich Ru (II) complexes containing (N, O) Schiff base ligands: Catalysts for base-free transfer hydrogenation of ketones. In: Applied Organometallic Chemistry, 33 (10).

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Abstract

Two new half-sandwich Ru (II)(p-cymene) complexes (1 and 2) containing dopamine-based (N, O) Schiff base ligands (L1H and L2H) were synthesized and characterized by FT-IR, UV–Visible and 1H & 13C NMR spectral techniques, and elemental analyses. The spectroscopic and analytical data revealed monobasic bidentate coordination of the ligands with Ru ion. The molecular structures of L1H, L2H and 2 were further confirmed by single crystal X-ray diffraction study. Complexes 1 and 2 have been employed as catalysts in the transfer hydrogenation of ketones using 2-propanol as a hydrogen source at 85 °C under base-free condition. Good to the excellent yield of secondary alcohols, gram scale synthesis, and high TON and TOF made this catalytic system interesting.

Item Type:	Journal Article
Publication:	Applied Organometallic Chemistry
Publisher:	John Wiley and Sons Ltd
Additional Information:	The copyright for this article belongs to John Wiley and Sons Ltd.
Keywords:	Amines; Catalysts; Hydrogenation; Ketones; Ligands; Ruthenium; Single crystals; Synthesis (chemical), Base-free; Gram-scale synthesis; Monobasic bidentate; Schiff-base; Schiff-base ligands; Single-crystal X-ray diffraction studies; Spectral techniques; Transfer hydrogenations, Ruthenium compounds
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	05 Jan 2023 09:17
Last Modified:	05 Jan 2023 09:17
URI:	https://eprints.iisc.ac.in/id/eprint/78779

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