Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Petr Sehnal"'
Autor:
Adrian C. Whitwood, Petr Sehnal, Xiangbiao Zhang, Somia E. Bajwa, Amanda G. Jarvis, Zhenyang Lin, Ian J. S. Fairlamb, Man Sing Cheung
Publikováno v:
Chemistry - A European Journal. 19:6034-6043
A multidentate and flexible diolefin-diphosphine ligand, based on the dibenzylidene acetone core, namely dbaphos (1), is reported herein. The ligand adopts an array of different geometries at Pt, Pd and Rh. At Pt(II) the dbaphos ligand forms cis- and
Autor:
Luis García, Eduardo Pérez, Gregorio Sánchez, Thomas J. Williams, José Luis Serrano, José Pérez, Joaquín García, Ian J. S. Fairlamb, Petr Sehnal, Sara De Ornellas
Publikováno v:
Organometallics. 30:5095-5109
Dinuclear palladacyclic complexes [{Pd(C∧N)(μ-NCO)}2] (C∧N = N-phenylbenzaldimine, Phbz) containing asymmetric imidato units (−NCO– = succinimidate (succ; 1), phthalimidate (phthal; 2), maleimidate...
Autor:
Ivo Starý, David Šaman, Petr Sehnal, Serghei Chercheja, Peter Eilbracht, Zuzana Krausová, Bojan P. Bondzic, Irena G. Stará
Publikováno v:
European Journal of Organic Chemistry. 2011:3849-3857
Starting from the optically pure [6]helicene-like alcohol(P,3S)-3-methyl-4-(4-methylphenyl)-1,3,6,7-tetrahydrobenzo[c]benzo[5,6]phenanthro[4,3-e]oxepin-14-ol, four helical phosphites were prepared from the corresponding chlorophosphites. These ligand
Publikováno v:
Chemical Reviews. 110:824-889
Autor:
Anny Jutand, Hanaa Taghzouti, Ian J. S. Fairlamb, Adrian C. Whitwood, Petr Sehnal, Adam Fraser Lee
Publikováno v:
Organometallics. 28:824-829
Palladium(0) complexes containing thienyl analogues of dibenzylidene acetone (dba) have been synthesized and characterized. Their reactivity toward PPh3 and dppe, to generate Pd0(η2-alkene)(PPh3)2 and Pd0(η2-alkene)(dppe) complexes, and their subse
Autor:
Ivo Starý, Petr Sehnal, Filip Teplý, David Šaman, Irena G. Stará, Lubomír Rulíšek, Zuzana Krausová, Ivana Cisarova
Publikováno v:
The Journal of Organic Chemistry. 73:2074-2082
Diastereoselective CoI-mediated [2 + 2 + 2] cycloisomerization of CH(3)O-substituted optically pure aromatic triynes to obtain nonracemic functionalized helicene-like compounds (comprising a penta-, hexa-, and heptacyclic helical scaffold) was studie
Autor:
Josef Cvačka, Zuzana Krausová, Ivo Starý, David Šaman, Filip Teplý, Irena G. Stará, Petr Sehnal, Pavel Fiedler
Publikováno v:
Collection of Czechoslovak Chemical Communications. 72:1499-1522
A modular synthesis of a series of methoxy substituted optically pure aromatic triynes (-)-(S)-5-9 and (-)-(R)-10 is presented. It relies on key operations such as substitution of benzylic bromine with an alkoxy group and aryl-alkyne coupling reactio
Autor:
Stephen G. Urquhart, Irena G. Stará, Petr Sehnal, Ivo Stary, Edwige Otero, Zuzana Alexandrová, David Šaman
Publikováno v:
Collection of Czechoslovak Chemical Communications. 71:1256-1264
A practical synthesis of racemic heptahelicene has been develeped being based on key [2+2+2] cycloisomerization of bis[2-(but-3-yn-1-yl)-1-naphthyl]acetylene under CpCo(CO)2/PPh3 or CpCo(C2H4)2 catalysis. The application of the Ni(cod)2 catalyst with
Publikováno v:
Tetrahedron: Asymmetry. 15:3805-3810
X-ray diffraction analysis revealed unexpected stereochemical features accompanying crystal self-assembly of the two title oligocarboxylic acids.
Autor:
Filip Teply, David Šaman, Petr Sehnal, Ivo Stary, Irena G. Stará, Zuzana Alexandrová, Pavel Fiedler
Publikováno v:
Collection of Czechoslovak Chemical Communications. 69:2193-2211
We have developed the synthesis of model nonracemic aromatic triynes (-)-(S)-1-4 containing the 1-{[2-(but-3-yn-1-yl)-1-naphthyl]ethynyl}-2-{[((S)-1-methylprop-2-yn-1-yl)oxy]- methyl}naphthalene unit. The common 1,2-di(2-substituted-1-naphthyl)acetyl