Výsledky vyhledávání - "Henk Oevering"

The mechanism for palladium catalyzed carbonylation of cinnamyl chloride

Autor: Richard J. van Haaren, Henk Oevering, Piet W. N. M. van Leeuwen, Jan Fraanje, Paul C. J. Kamer, Kees Goubitz, Gino P. F. van Strijdonck

Publikováno v: Journal of Organometallic Chemistry, 689(23), 3800-3805. Elsevier

In the palladium catalyzed alkoxycarbonylation of cinnamyl chloride two mechanisms play a role. An associative mechanism was observed at low pressure, while an insertion mechanism was observed at high pressure or when an excess of ligand was used. Se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2276ce87bc57d8d4b23a32cd420f0bab
https://doi.org/10.1016/j.jorganchem.2004.07.016

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The effect of ligand donor atoms on the regioselectivity in the palladium catalyzed allylic alkylation

Autor: Paul C. J. Kamer, Kees Goubitz, Piet W. N. M. van Leeuwen, Richard J. van Haaren, Peter H Keeven, Gino P. F. van Strijdonck, Joost N. H. Reek, Lars A. van der Veen, Henk Oevering

Publikováno v: Inorganica Chimica Acta, 327, 108-115. Elsevier

The regioselectivity of the palladium catalyzed allylic alkylation was studied systematically using bidentate ligands based on a xanthene backbone, bearing different donor atoms. The nature of the ligand donor atoms has a pronounced influence on the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::879c638be3902c2fcd55b182b5be3ec5
https://dare.uva.nl/personal/pure/en/publications/the-effect-of-ligand-donor-atoms-on-the-regioselectivity-in-the-palladium-catalyzed-allylic-alkylation(eeeb46e0-3449-482e-bba3-09cc2c19c3ea).html

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On the Influence of the Bite Angle on the Allylic Alkylation of (E) and (Z) Substrates: Loss and Retention of Double Bond Stereochemistry

Autor: Piet W. N. M. van Leeuwen, Joost N. H. Reek, Henk Oevering, Richard J. van Haaren, Paul C. J. Kamer, Gino P. F. van Strijdonck

Publikováno v: European Journal of Inorganic Chemistry. 2001:837-843

The bite angle of bidentate phosphane ligands has a pronounced influence on the degree of retention of the double bond geometry of the allylic substrate in the allylic alkylation reaction. To study the effect of the ligand on the regioselectivity, (Z

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb43a9989088691a7ef21af019b08293
https://doi.org/10.1002/1099-0682(200103)2001:3<837::aid-ejic837>3.0.co

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Platinum(II), palladium(II) and rhodium(I) complexes of o-, m- and p-Ph2PC6H4PO(OEt)2. PtCl2–SnCl2 Hydroformylation catalysts modified with phosphonated triarylphosphines

Autor: A. Guy Orpen, Paul G. Pringle, Dianne D. Ellis, Johannes G. deVries, Gayle Harrison, Henk Oevering, Hirihattaya Phetmung

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :671-675

An improved route to the bulky phosphine o-Ph2PC6H4PO(OEt)2o-1 has been elaborated. The isomers [PtCl2L2], L = o- (2), m- (3) or p-1 (4), were made by treatment of [PtCl2(cod)] with the appropriate phosphine. Complex 2 has a trans configuration where

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6586c320b90d7d0a40c5998fe939de6a
https://doi.org/10.1039/a908963b

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Bite angle effect of bidentate P–N ligands in palladium catalysed allylic alkylation †

Autor: Piet W. N. M. van Leeuwen, Richard J. van Haaren, Paul C. J. Kamer, Joost N. H. Reek, Henk Oevering, Cees J. M. Druijven, Gino P. F. van Strijdonck

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :1549-1554

Two series of new bidentate P–N ligands have been synthesized. Application of these ligands in the palladium catalysed allylic alkylation of crotyl chloride and cinnamyl chloride leads to the preferential formation of the branched product. A larger

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::606143e441802bbf690e0a911ac3fc00
https://doi.org/10.1039/b001355m

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On the Influence of the Bite Angle of Bidentate Phosphane Ligands on theRegioselectivity in Allylic Alkylation

Autor: Piet W. N. M. van Leeuwen, Richard J. van Haaren, Paul C. J. Kamer, Henk Oevering, Joost N. H. Reek, Gino P. F. van Strĳdonck, B. Coussens

Publikováno v: European Journal of Inorganic Chemistry. 1999:1237-1241

The natural bite angle of bidentate phosphane ligands influences the isomer distribution (syn and anti) in (1-methylallyl)(bisphosphane)Pd OTf complexes. It was found (31P- and 1H-NMR studies) that the syn/anti ratio changes from 12 (dppp) to 1.3 (si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::034897f27dc5dcaf18283a004ed91c8e
https://doi.org/10.1002/(sici)1099-0682(199908)1999:8<1237::aid-ejic1237>3.0.co

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Substituent and Solvent Effects in the Insertion and Isomerization of Olefins by Platinum(bis-phosphine) Complexes: An ab Initio Study of the Pt(PR3)2H(propene)+ Model Systems

Autor: B. Coussens, Steven Creve, Henk Oevering

Publikováno v: Organometallics. 18:1967-1978

Traditional ab initio (HF, MP2) and density functional theory (DFT) calculations are applied on the cationic Pt(PR3)2(H)(propene)+ complexes (R = H, F, CH3) in order to study the insertion of propene in the Pt−H bond. In general, insertion and β-e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39670ed9842dd0d416e68d4d2b6ef7ea
https://doi.org/10.1021/om9806895

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Dinuclear Paddle-Wheel Copper(II) Carboxylates in the Catalytic Oxidation of Carboxylic Acids. Unusual Polymeric Chains Found in the Single-Crystal X-ray Structures of [Tetrakis(μ-1-phenylcyclopropane-1-carboxylato-O,O‘)bis(ethanol-O)dicopper(II)] and catena-Poly[[bis(μ-diphenylacetato-O:O‘)dicopper](μ3-diphenylacetato-1-O:2-O‘:1‘-O‘)(μ3-diphenylacetato-1-O:2-O‘:2‘-O‘)]

Autor: Wim Buijs, Jan Reedijk, Hajo A. J. Provó Kluit, Miles T. Lakin, Willem L. Driessen, Frank Petrus Willibrord Agterberg, A. L. Spek, Henk Oevering

Publikováno v: Inorganic Chemistry. 36:4321-4328

The X-ray structures and spectroscopic and magnetic properties of [tetrakis(mgr;-1-phenylcyclopropane-1-carboxylato-O,O')bis(ethanol-O)dicopper(II)], 1, and catena-poly[[bis(mgr;-diphenylacetato-O:O')dicopper](mgr;(3)-diphenylacetato-1-O:2-O':1'-O')(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25c7b71b496099c7dc158616a75c2fca
https://doi.org/10.1021/ic9614733

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Temperature effects on intramolecular electron transfer kinetics under 'normal', 'inverted', and 'nearly optimal' conditions

Autor: Henk Oevering, Anna M. Oliver, Michael N. Paddon-Row, John M. Warman, Jan Kroon, Jan W. Verhoeven

Publikováno v: The Journal of Physical Chemistry. 97:5065-5069

The temperature dependence of electron transfer over a wide range of driving forces extending from far in the «normal» to deep into the «inverted» region is studied with the aid of a limited number of closely related and fully rigid bridged donor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ceeed6aacbe16e090cc635f4c356f746
https://doi.org/10.1021/j100121a036

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