Heterogeneous route for transfer hydrogenation reactions of ketones using Ru(II)Cymene complex over modified benzene-organosilica (PMOB)

TitleHeterogeneous route for transfer hydrogenation reactions of ketones using Ru(II)Cymene complex over modified benzene-organosilica (PMOB)
Publication TypeJournal Article
Year of Publication2017
AuthorsLazar, A, Silpa, S, Prabhakaran, VC, Singh, AP
JournalMolecular Catalysis
Volume440
Pagination66-74
Date PublishedOCT
Type of ArticleArticle
KeywordsConventional Hydrogenation Reactions, Ru(II)Cym@PMOB, Transfer Hydrogenation Reaction, [Ru(II)Cl2(p-cymene)]2 complex
AbstractAn inorganic-organic hybrid catalyst, Ru(II)Cym@PMOB, was synthesized by anchoring of [Ru(II)Cl-2(Pcymene)](2) complex which is derived from a reaction between hydrated ruthenium(III) trichloride and ocphellandrene over aminofunctionalized benzene-organosilica (PMOB). In the context of secondary alcohol synthesis from ketones, transfer hydrogenation (TH) reactions are convenient compared to conventional hydrogenation reactions owing to its lower activation energy and ambient pressure and mild temperature reaction" conditions. The synthesized catalysts were characterized by CHN analysis, XRD, ICP, N-2-sorption analysis, TG & DTA, FFIR,C-13 & 29Si solid NMR, UV-vis, TEM, SEM and XPS. The catalytic activities of neat [Ru(II)C-12(p-cymene)]2 complex and Ru(II)Cym@PMOB were evaluated in transfer hydrogenation (TH) of ketones (-97%) and compared with conventional hydrogenation reactions (-5%) where molecular H-2 was used. The results showed Ru(II)Cym@PMOB as highly active catalyst towards transfer hydrogenation (TH) reaction of acetophenones compared to neat [Ru(II)Cl-2(p-cymene)(12) complex. The heterogeneity of Ru(II)Cym@PMOB was confirmed by Sheldon's test. (C) 2017 Elsevier B.V. All rights reserved.
DOI10.1016/j.mcat.2017.07.018
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.958
Divison category: 
Catalysis and Inorganic Chemistry

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