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    Catechol-type ligand containing new modular design dioxaborinane compounds: Use in the transfer hydrogenation of various ketones
    (Elsevier Science Bv, 2018) Kilic, Ahmet; Kaya, Ibrahim Halil; Ozaslan, Ismail; Aydemir, Murat; Durap, Feyyaz
    A novel class of tricoordinate dioxaborinane compounds, which have the general formula [B-1(L1-5)] and [B-2(L1-5)], were designed and synthesized by the corresponding catechol-type ligands (L-1-L-5) at ambient temperature. All the new compounds were fully characterized by NMR (H-1, C-13, and B-11), FT-IR, UV-vis, LC-MS spectroscopy, and melting point analysis and microanalysis. The dioxaborinane [B-1(L1-5)] and [B-2(L1-5)] compounds were investigated as catalyst for the transfer hydrogenation of various ketones under suitable conditions. Particularly, it was proved that the ferrocene-based dioxaborinane [B-1(L1-5)] molecules can afford an efficient catalytic conversion compared to corresponding 3,5-bis(trifluoromethyl)phenyl-based [B-2(L1-5)] dioxaborinanes in transfer hydrogenation catalytic studies.