Xantphos
Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate ligand and is noteworthy for having a particularly wide bite angle. Such ligands are useful in the hydroformylation of alkenes. Illustrative of its wide bite angle, it forms both cis and trans adducts of platinum(II) chloride. A related bidentate ligand with a greater bite angle is spanphos.
The ligand is prepared by double directed lithiation of 9,9-dimethylxanthene with sec-butyllithium followed by treatment with chlorodiphenylphosphine.

This is an excerpt from the article Xantphos from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Xantphos at en.wikipedia.org was accessed 1,288 times in the last 30 days. (as of: 06/08/2013)
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Xantphos - Wikipedia, the free encyclopedia
Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate ligand and is noteworthy for having a particularly ...
en.wikipedia.org/wiki/Xantphos
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Xantphos - 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene, 97 ...
Sigma-Aldrich offers Aldrich-526460, 4,5-Bis(diphenylphosphino)-9,9- dimethylxanthene for your research needs. Find product specific information including ...
www.sigmaaldrich.com/catalog/product/aldrich/526460?lang=en®ion=US
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XANTPHOS - Strem Chemicals Inc.
4,6-Bis(diphenylphosphino)phenoxazine, min. 98% NIXantphos, 261733-18-0. 15-1241 · 15-1241. 9,9-Dimethyl-4,5-bis(di-t-butylphosphino)xanthene, min.
www.strem.com/catalog/family/XANTPHOS/
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Mechanistic studies on palladium-catalyzed carbon-nitrogen bond ...
Pd(Xantphos)2 was found to form at high ligand concentrations. To determine ... morpholine using the ligand Xantphos at varying palladium to ligand ratios.
dspace.mit.edu/bitstream/handle/1721.1/32489/61858017.pdf?sequence=1
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161265-03-8 Xantphos - Watson Noke Scientific
Watson Noke Scientific provides Xantphos CAS 161265-03-8 which is used in a synthesis of heterocycles and is a metal chelating ligand for catalysis.
watsonnoke.com/xantphos-cas-161265-03-8/
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Pd-Catalyzed Intermolecular Amidation of Aryl Halides: The ...
Pd-Catalyzed Intermolecular Amidation of Aryl Halides: The Discovery that Xantphos Can Be Trans-Chelating in a Palladium Complex. Jingjun Yin and Stephen ...
www.organic-chemistry.org/abstracts/literature/049.shtm
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New Insights into Xantphos/Pd-Catalyzed C−N Bond Forming ...
Dec 8, 2005 ... Both (Xantphos)Pd(dba) and Pd(Xantphos)2 were identified in mixtures of Pd2( dba)3 and Xantphos by use of 31P NMR and independent ...
pubs.acs.org/doi/abs/10.1021/om050715g
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File:Xantphos.png - Wikimedia Commons
Aug 16, 2011 ... File:Xantphos.png. From Wikimedia Commons, the free media repository. Jump to: navigation, search. File; File history; File usage on ...
commons.wikimedia.org/wiki/File:Xantphos.png
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A model iridium hydroformylation system with the large bite angle ...
Iridium complexes containing the large bite angle bisphosphine ligand Xantphos have been synthesized and their reactivity studied. Several of these complexes ...
www.ncbi.nlm.nih.gov/pubmed/16933920
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Xantphos (baka201) on Twitter
The latest from Xantphos (@baka201). ゲームとかアニメとか漫画とか好きなダメダメ 大学生。情緒不安定。痛いこととどうでもいいことをあえていう。. 札幌サーバー.
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Search results for "Xantphos"
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Xantphos in science
Ruthenium xantphos complexes in hydrogen transfer processes ...
University of Bath homepage ... The in situ combination of [Ru(PPh3)(3)(CO)H-2] with Xantphos is catalytically active for the alkylation of alcohols with the ...
Oxygen gas sensing by luminescence quenching in crystals of Cu ...
Oct 13, 2010 ... Department of Chemistry, University of Minnesota, Minneapolis, ... (where POP = bis[2-(diphenylphosphino)phenyl]ether; Xantphos = 4 ...
Hydrogenolysis of β-O-4 lignin model dimers by a ruthenium ...
Aug 28, 2012 ... Department of Chemistry, University of British Columbia, Vancouver, British ... of so-called lignin model dimers using a Ru-Xantphos catalyst are ...
[PDF]Complexes - American Chemical Society Publications
of Cu(Xantphos)(phen). +. Complexes. Conor S. Smith,† Charles W. Branham,‡ Brian J. Marquardt,‡ and Kent R. Mann*,†. Department of Chemistry, UniVersity ...
[PDF]A Model Iridium Hydroformylation System with the Large Bite Angle ...
Ligand Xantphos: Reactivity with Parahydrogen and Implications for ... Department of Chemistry, UniVersity of Rochester, Rochester, New York 14627, and ...
Cationic iridium complexes of the Xantphos ligand. Flexible - WRAP ...
Aug 15, 2011 ... University of Warwick. Study; | ... Abstract. Reaction of the Ir(I)-Xantphos complex [Ir(kappa(2)-Xantphos)(COD)][BAr(4)(F)] (Xantphos - 4 ...
A model iridium hydroformylation system with the ... - University of York
A model iridium hydroformylation system with the large bite angle ligand Xantphos: Reactivity with parahydrogen and implications for hydroformylation catalysis ...
[PDF]New Diphosphine Ligands Based on Heterocyclic ... - UvA DARE
Xantphos, without isomerization or hydrogenation of l-octene. DBFphos does not ...... Department of Organic Chemistry, University of Am- sterdam, for his help ...
Quantum mechanical modelling of alkene hydroformylation as ...
Apr 23, 2013 ... Quantum mechanical modelling of alkene hydroformylation as catalyzed by Xantphos-Rh complexes ... 1101 University Avenue Madison, WI ...
Microwave‐Assisted Transfer Hydrogenation of Ketones by Ru ...
Oct 18, 2012 ... Microwave-Assisted Transfer Hydrogenation of Ketones by Ru(Xantphos) Arene Complexes. Dr. Thashree Marimuthu,; Prof. Holger B. Friedrich ...
Books on the term Xantphos
Computational Modeling of Homogeneous Catalysis
Computational Modeling of Homogeneous Catalysis
Feliu Maseras, Agustí Lledós, 2002
We choose two diphosphine ligands (benzoXantphos and homoXantphos) which among the series of Xantphos ligands represent the extreme cases of natural bite angle, and used propene as a model for terminal aliphatic alkenes and styrene.
Methodology and Synthesis Using Hypophosphorous Derivatives: ...
Methodology and Synthesis Using Hypophosphorous Derivatives: ...
Jennifer Lynn Tellez, 2006
13c 14c 15c 16c Entry Base Liganda (%) (%) (%) (%) 1 N-Methyl morpholine Xantphos 25 91 65 7 2 N-Methylpiperidine Xantphos 20 78 77 7 3 DMAP Xantphos 31 26 139 0 4 DIEA Xantphos 45 52 91 0 5 DBU Xantphos 43 41 75 35 6 t-BuNH2 ...
Sustainable Catalysis: Challenges and Practices for the ...
Sustainable Catalysis: Challenges and Practices for the ...
Peter J. Dunn, K. K. (Mimi) Hii, Michael J. Krische, 2013
of [Pd2(dba)3] (1 mol%)/Xantphos (3 mol%) (Table 12-1). The reaction was further optimized for bases, solvents, stoichiometry, and temperature. Using the catalytic system of [Pd2(dba)3]/Xantphos/Cul, screening of bases (NaZCO3, K2003, ...
New Methodologies for the Synthesis of Organophosphorus Compounds
New Methodologies for the Synthesis of Organophosphorus Compounds
Monika I. Antczak, 2008
yield % Hex P O BuO H Hex EtO Ph PO H Ph P O MeO H Ph P O BuO H Ph P O BuO H Br Oct 100 (84) 89 (76) 100(69) 13 Br 100 (61) Pd2dba3 Xantphos Pd2dba3 Xantphos Pd2dba3 Xantphos Pd2dba3 Xantphos Pd2dba3 Xantphos P O BuO ...
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