In situ-generated mononuclear half-sandwich [(η6-p-cymene)RuCl(amide)] complexes as efficient catalysts in the selective oxidation of benzyl alcohol to benzaldehyde

被引：0
|
作者：
Veeranna, G. [1 ]
Chittireddy, Venkata Ramana Reddy [1 ]
Vadde, Ravinder [2 ]
机构：
[1] Jawaharlal Nehru Technol Univ Hyderabad, Dept Chem, Hyderabad 500085, India
[2] Kakatiya Univ, Dept Chem, Warangal 506009, India
来源：
RESULTS IN CHEMISTRY | 2024年 / 11卷
关键词：
Bidentate amide; (eta 6-p-cymene)RuCl(L); Oxidation ofbenzyl alcohols; Benzaldehydes synthesis; TBHP; RUTHENIUM(II) ARENE COMPLEXES; TRANSFER HYDROGENATION; ETA(6)-P-CYMENE COMPLEXES; CRYSTAL-STRUCTURE; LIGANDS SYNTHESIS; ANTICANCER; METATHESIS; RU(II); BEARING; RHODIUM(III);
D O I：
10.1016/j.rechem.2024.101826
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The application of in situ-generated mononuclear Ru(II)-organometallic complexes (1-7) i.e., [(eta 6-p-cymene) RuCl(L)], produced by the interaction of Ru dimer [(p-cymene)RuCl2]2 with some polyfunctional amide ligands (L) as highly efficient catalystsin the oxidation of various benzyl alcohols (B-OLs) by tert-butyl hydroperoxide (TBHP) oxidant to produce selectively the benzaldehydes (B-ALs) in high yields in CH3CN is described. The in situ-generated catalysts were found to be highly active than the [(p-cymene)RuCl2]2 precursor (dimer) in the oxidation of B-OL to B-AL. The influence of various reaction parameters such as type of catalyst, reaction temperature, oxidant and solvent during the B-OL oxidation was systematically monitored to optimize the catalytic conditions. In order to confirm the formation of predicted in situ-generated mononuclear Ru(II) complex catalysts during the oxidation of B-OL, one of the Ru(II) complex (1) was synthesized and characterized by Elemental analysis (EA), Infrared (IR), Proton-NMR and Mass spectral techniques and its mono nuclear structure is proposed. Further, it was observed that the activity of in-situ generated and pre-synthesized Ru(II) catalyst was almost same in the oxidation of B-OL to B-AL.
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页数：7
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