z-logo
Premium
Half‐sandwich Ru (II) complexes containing (N, O) Schiff base ligands: Catalysts for base‐free transfer hydrogenation of ketones
Author(s) -
Satheesh C.E.,
Sathish Kumar Pushpanathan N.,
Kumara P. Raghavendra,
Karvembu Ramasamy,
Hosamani Amar,
Nethaji M.
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5111
Subject(s) - chemistry , transfer hydrogenation , schiff base , catalysis , denticity , monobasic acid , yield (engineering) , base (topology) , medicinal chemistry , crystal structure , polymer chemistry , crystallography , ruthenium , organic chemistry , mathematical analysis , materials science , mathematics , metallurgy
Two new half‐sandwich Ru (II)( p ‐cymene) complexes ( 1 and 2 ) containing dopamine‐based (N, O) Schiff base ligands ( L 1 H and L 2 H ) were synthesized and characterized by FT‐IR, UV–Visible and 1 H & 13 C 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 L 1 H , L 2 H 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.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here