Rational Synthesis and Mutual Conversion of Bis‐N‐heterocyclic Diphosphanes and Secondary N‐Heterocyclic Phosphanes

Autor: Martin Nieger, Sebastian Burck, Dietrich Gudat, Jason D. Masuda, Johannes Bender, Nick A. Giffin, Oliver Puntigam, Arthur D. Hendsbee, Fabian Ehret, Daniela Förster

Publikováno v: European Journal of Inorganic Chemistry. 2013:2041-2050

Symmetrical N-heterocyclic 1,1′,3,3′-tetrahydro-2,2′-bi-1,3,2-diazaphospholes and 2,2′-bi-1,3,2-diazaphospholidines are prepared by time-saving, sequential “one-pot” syntheses starting from 1,4-diazabutadienes or N-alkyl or N-aryl-substit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d7b270e46ff083a5cdeb7fde7a5b89f
https://doi.org/10.1002/ejic.201201471

Towards Spontaneous Heterolysis of the Homonuclear PP Bond in Diphosphines: The Case of Diazaphospholeniumtriphospholides

Autor: Martin Hofmann, Dietrich Gudat, László Nyulászi, Zoltán Benkő, Falk Lissner, Sebastian Burck, Ulrich Zenneck

Publikováno v: Chemistry - A European Journal. 16:2857-2865

Computational studies on a series of polyphospholyl-substituted N-heterocyclic phosphines (CH) 2 (NR) 2 P-P n (CH) 5-n (R=Me, n=1-5) disclosed that increasing formal replacement of CH units in the phosphole ring by phosphorus atoms is associated with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c03970ff471f8eda0cc3756277b48a1
https://doi.org/10.1002/chem.200902931

Bisphosphine-Functionalized Cyclic Decapeptides Based on the Natural Product Gramicidin S: A Potential Scaffold for Transition-Metal Coordination

Autor: Sander G. A. van Assema, J. Chris Slootweg, José M. Otero, Antonio L. Llamas-Saiz, Mark J. van Raaij, Mark Overhand, Bas Lastdrager, Koop Lammertsma, Sebastian Burck, Andreas W. Ehlers, Bruno Dacunha-Marinho

Publikováno v: Chemistry: A European Journal, 15(33), 8134-45. Wiley-VCH Verlag
Burck, S, van Assema, S G A, Lastdrager, B, Slootweg, J C, Ehlers, A W, Otero, J M, Dacunha-Marinho, B, Llamas-Saiz, A L, Overhand, M, van Raaij, M J & Lammertsma, K 2009, ' Bisphosphine-functionalized cyclic decapeptides based on the natural product Gramicidin S: a potential scaffold for transition-metal coordination ', Chemistry: A European Journal, vol. 15, no. 33, pp. 8134-45 . https://doi.org/10.1002/chem.200901127

The natural product Gramicidin S is a promising scaffold for novel oligopeptide-based bisphosphine ligands, combining the advantageous rigid chiral backbone with the close proximity of phosphine substituents. The required unnatural, phosphine-contain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::191183838a19a293376f4bd28a15f45d
https://doi.org/10.1002/chem.200901127

Spontaneous Phosphorus-Halogen Bond Cleavage inN-Heterocyclic Halogenophosphanes Revisited: The Case of P-Br and P-I Bonds

Autor: Martin Nieger, László Nyulászi, Dietrich Gudat, Sebastian Burck, Zoltán Benkõ, Dénes Szieberth

Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 635:245-252

P-bromo- and P-Iodo-substituted N-heterocyclic phosphanes (NHP) were synthesized by halogen exchange starting from the P-chloro compound and characterized by spectroscopic data and X-ray diffraction studies. Whereas the Br-NHP still forms a molecular

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b03c91dc5b3579f20efa52aa0923b3b6
https://doi.org/10.1002/zaac.200800408

Increasing the Lability of Polarised Phosphorus–Phosphorus Bonds

Autor: Dietrich Gudat, Denis Vinduš, Sebastian Burck, Martin Nieger

Publikováno v: European Journal of Inorganic Chemistry. 2008:704-707

Diphosphanes with polarised P–P bonds react readily with Lewis acids like borane, gallium trichloride, or with elemental selenium, to give products arising from electrophilic attack at the more basic phosphorus atom and consecutive bond cleavage. S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3413a2e83634ca2c3514292d1f26d497
https://doi.org/10.1002/ejic.200700964