Journal ArticleDOI
Facile Conversion of Alcohols into Esters and Dihydrogen Catalyzed by New Ruthenium Complexes
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TLDR
In this paper, an efficient, environmentally benign method for the preparation of esters from alcohols under mild, neutral conditions without the need for carboxylic acid derivatives and condensing agents was developed.Abstract:
An efficient, environmentally benign method for the preparation of esters from alcohols under mild, neutral conditions without the need for carboxylic acid derivatives and condensing agents was developed. Catalyst design, based on new Ru(II) hydrido carbonyl complexes incorporating electron-rich PNP and PNN ligands has resulted in the novel complex (I) which is an outstanding catalyst for the dehydrogenation of primary alcohols to esters and H2 under neutral conditions.read more
Citations
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Metal–Ligand Cooperation as Key in Formation of Dearomatized NiII–H Pincer Complexes and in Their Reactivity toward CO and CO2
TL;DR: The unique synthesis and reactivity of [(RPNP*)NiH] complexes (1a,b), based on metal–ligand cooperation (MLC), are presented and have been fully characterized by NMR and X-ray crystallography.
Journal ArticleDOI
Synthesis of Ruthenium Complexes Bearing PCP-Type Pincer Ligands and Their Application to Direct Synthesis of Imines from Amines and Benzyl Alcohol
TL;DR: Ruthenium complexes bearing N-heterocyclic carbene-and phosphine-based PCP-type pincer ligands were synthesized and characterized by X-ray crystallography as mentioned in this paper.
Journal ArticleDOI
Osmium-Mediated C ? H and C ? C Bond Cleavage of a Phenolic Substrate: p-Quinone Methide and Methylene Arenium Pincer Complexes
Régis M. Gauvin,Régis M. Gauvin,Haim Rozenberg,Linda J. W. Shimon,Yehoshoa Ben-David,David Milstein +5 more
TL;DR: X-ray diffraction studies have been carried out on compounds 2, 3, 4, 5 b, 6, and 7, which allows the study of the structural variations when going from methylene arenium to quinone methide derivatives.
Journal ArticleDOI
Catalytic Reduction of Alkyl and Aryl Bromides Using Propan‐2‐ol
TL;DR: Milstein's complex, (PNN)RuHCl(CO), catalyzes the efficient reduction of aryl and alkyl halides under relatively mild conditions by using propan-2-ol and a base to reduce Sterically hindered tertiary and neopentyl substrates.
Journal ArticleDOI
Acceptorless dehydrogenative coupling of primary alcohols to esters by heterogeneous Pt catalysts
Sondomoyee K. Moromi,S. M. A. Hakim Siddiki,Md. Ayub Ali,Kenichi Kon,Ken-ichi Shimizu,Ken-ichi Shimizu +5 more
TL;DR: In this article, a reusable catalysts for the acceptor-free dehydrogenative coupling of primary alcohols to esters under additive-free and solvent-free conditions was proposed.
References
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Journal ArticleDOI
Direct Condensation of Carboxylic Acids with Alcohols Catalyzed by Hafnium(IV) Salts
TL;DR: It is shown that the direct condensation of equimolar amounts of carboxylic acids and alcohols can be achieved with the use of hafnium(IV) salts, such as commercially available ha fnium( IV) chloride and hafnia(IV), which may be suitable for large-scale operations.
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Ruthenium-catalyzed oxidative transformation of alcohols and aldehydes to esters and lactones
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Electron-Rich, Bulky Ruthenium PNP-Type Complexes. Acceptorless Catalytic Alcohol Dehydrogenation
TL;DR: In this article, the electron-rich, bulky tridentate PNP ligand (2,6-bis-(di-tert-butylphosphinomethyl)pyridine) with Ru(PPh3)3Cl2 at 65 °C resulted in formation of a solution containing the dinitrogen monomeric Ru(II) complex 1a and the N2-bridged dinuclear Ru(2) complex 2, which can be interconverted.
Journal ArticleDOI
Catalytic disproportionation of aldehydes with ruthenium complexes
N. Menashe,Youval Shvo +1 more