Hydrogen-Transfer Catalysis with Pincer-Aryl Ruthenium(II) Complexes

Dani, Paulo; Karlen, Thomas; Gossage, Robert A.; Gladiali, Serafino; Koten, Gerard van

doi:10.1002/(sici)1521-3773(20000218)39:4<743::aid-anie743>3.0.co;2-i

Cited by 189 publications

(119 citation statements)

References 25 publications

(7 reference statements)

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“…67,270,271 Moreover, ruthenacycles are amongst the most active catalysts known to date for transfer hydrogenation reactions. 272,273 An excellent review has recently appeared, 28 which compiles a vast range of precursors and ligand settings used for cycloruthenation. Perhaps the two most important conclusions from this overview are that, first, cycloruthenation is extremely versatile and of very broad scope.…”

Section: Rutheniummentioning

confidence: 99%

Cyclometalation Using d-Block Transition Metals: Fundamental Aspects and Recent Trends

2009

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Section: Rutheniummentioning

confidence: 99%

Cyclometalation Using d-Block Transition Metals: Fundamental Aspects and Recent Trends

2009

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“…NiBr{C 6 H 2 (CH 2 NMe 2 ) 2 -2,6-Z-4} that is an excellent catalyst for both ATRA and Atom Transfer Radical Polymerization reactions, vide supra. The excellent catalytic activity of Ru(OTf) (PPh 3 ) {C 6 H 2 (CH 2 NMe 2 ) 2 -2,6} in transfer hydrogenation of ketones was a surprise too [56]. The activity PdCl{C 6 H 2 (CH 2 SPh) 2 -2,6} as a Lewis acidic catalyst in C-C cross coupling reactions was known but that this palladium pincer compound also can act as a bifunctional catalyst, for example, in the tandem stannylation/electrophilic allylic substitution of allyl chlorides with hexamethylditin and benzaldehydes, provided new opportunities for the development of continuous catalytic processes [57] (see Fig.…”

Section: Pincer Metal Catalysts [46]mentioning

confidence: 99%

Highlights of 45 years of research: A personal account

Koten

2017

Journal of Organometallic Chemistry

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a b s t r a c tThis part of my biosketch, which I prepared on invitation by the Editors, made me realize again how entangled my interest for doing research and teaching and management have been over the years. Working together with my students and colleagues has always been a strong motivation and pleasure for me and I hope that this sketch of our research reflects our common enthusiasm for what we achieved.In hindsight, trying to overlook almost 45 years of research, various main themes can be discerned that marked my fundamental research in the subsequent periods at TNO Utrecht (1968e1977), University of Amsterdam (1977e1986) and University of Utrecht (1986e2007). Overarching has been my preference and fascination for working with nitrogen based ligands (culminating in the design and use of the NCNpincer ligand platform, vide infra), the study of synthetic routes for organometallics (most importantly trans-and cyclo-metallation routes), the use of NMR for the study of the stereochemistry of organometallics (cf. the early use of 107,109 Ag NMR for detecting and following the formation of coordination compounds with helical structures), chemistry involving organometallic radicals (cf. organozinc and aluminum a-diimine chemistry, development of b-lactam synthesis routes), self-assembly of organometallics to discrete aggregated species (cf. organo-Cu, -Li and cuprate chemistry), the development of palladium complexes and homogeneous metal catalysts with simple amine ligands, the synthesis of, and catalysis with, dendrimers decorated with organometallic catalysts, mimicking the active center of metallo-enzymes as well as the synthesis of organometal-lipase hybrids for catalysis.Being educated in an "eco"-system of contract research, in concert with fundamental research, the results of the above outlined items were not only published in journals with peer review (>850) but also in the patent literature (>40). Most important were the results reported in over 85 PhD theses that I had the privilege to supervise as PI. The references refer to key-papers describing this body of work. The respective reference numbers are given at the heading of each paragraph. The full list of publications in peer reviewed Journals can be found in http://www.gerardvankoten.nl and www.uu.nl/staff/GvanKoten.© 2017 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). GeneralAs indicated above, nitrogen ligands fascinated me throughout my research career, right from the very beginning. Whereas in my early days ligands with phosphorous donor atoms were the dominating "privileged" ligands in inorganic and organometallic chemistry; they have remained so up until now. However, my interest for nitrogen-containing ligands was fortified for a number of reasons; i, Nitrogen is one of the smallest donor atoms. This results in short N-metal bond distances thus affecting/interfering with its (N)R-substituents (also because of the short N-C bonds, viz. N-cone angle c...

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“…The organic layer was dried (MgSO 4 ) and the volatiles were removed. Next, the remaining solid was redissolved in acetone and treated with NaI (1.20 g, 8.00 mmol) and the yellow solution was stirred for 1 h. 3 . X-ray intensities were measured on a Nonius Kappa CCD diffractometer with rotating anode (u=0.71073 A , ).…”

Section: -17mentioning

confidence: 99%

“…2 These include catalytically active metals like ruthenium, nickel and palladium, of which the resulting organometallic materials can be applied in hydrogen transfer reactions, 3 Kharasch additions, 4 and C C coupling reactions, 5 respectively. Recently, it was demonstrated that, via platinum incorporation, access can be gained to organometallic SO 2 -sensors 6 and biomarkers.…”

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confidence: 99%