Zobrazeno 1 - 10
of 501
pro vyhledávání: '"Wolfgang Saak"'
Publikováno v:
European Journal of Inorganic Chemistry. 2016:5242-5249
In titanium imine complexes the ligand can exhibit several bonding modes. While η2-imine complexes are intermediates in several catalytic transformations and well investigated, the potential of imines to coordinate through the lone pair of electrons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2be8feba7044d938a242ba55ffeba720
https://doi.org/10.1002/ejic.201600995
https://doi.org/10.1002/ejic.201600995
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 641:2543-2548
The synthesis of a hexacoordinate triorganoaluminum compound Al(NapSiH)3 (6) (NapSiH = 8-dimethylsilylnaphthyl) is reported. Three additional Si–H···Al contacts complete the coordination sphere around the central aluminum atom. Structural and sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::208f6dd394136dea929a5a19bc133c4b
https://doi.org/10.1002/zaac.201500582
https://doi.org/10.1002/zaac.201500582
Publikováno v:
European Journal of Inorganic Chemistry. 2015:5171-5187
The reductive complexation of aldimines is one of the promising synthetic tools to obtain titanaaziridines by reaction of the corresponding titanium halides and magnesium as a reducing agent. The effects of the substitution pattern of the imine ligan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::876a29f113446e9394e510f51fcaba79
https://doi.org/10.1002/ejic.201500805
https://doi.org/10.1002/ejic.201500805
Autor:
Marc Schmidtmann, Nicolai Lauterbach, Wolfgang Saak, Rüdiger Beckhaus, Jaika Dörfler, Manfred Manßen, Sven Doye
Publikováno v:
Angewandte Chemie International Edition. 54:4383-4387
Titanaaziridines or η(2)-imine titanium complexes are considered key intermediates of the titanium-catalyzed hydroaminoalkylation of alkenes. Herein, we present an efficient synthetic route to this class of compounds, starting from N-methylanilines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c08eea5f2182d1b0c4602a40f1a25463
https://doi.org/10.1002/anie.201500796
https://doi.org/10.1002/anie.201500796
Autor:
Rüdiger Beckhaus, Jaika Dörfler, Marc Schmidtmann, Manfred Manßen, Sven Doye, Wolfgang Saak, Nicolai Lauterbach
Publikováno v:
Angewandte Chemie. 127:4458-4462
Titanaaziridine bzw. η2-Imintitankomplexe sind Schlusselintermediate in der titankatalysierten Hydroaminoalkylierung von Alkenen. Hier berichten wir uber einen effizienten Zugang zu dieser Verbindungsklasse, ausgehend von N-Methylanilinen und Bis(η
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36319aed1f64176bbda40065b2fa1664
https://doi.org/10.1002/ange.201500796
https://doi.org/10.1002/ange.201500796
Autor:
André Schäfer, Detlev Haase, Marc Schmidtmann, Florian Loose, Inka Plettenberg, Rüdiger Beckhaus, Wolfgang Saak, Thomas Müller
Publikováno v:
Organometallics. 33:6785-6795
Two independent synthetic routes to η2-imine titanocene complexes were developed. On one hand side, ligand exchange reactions of bis(trimethylsilyl)acetylene by (p-Tolyl)HC═NPh (3) employing the Rosenthal reagent Cp2Ti{η2-C2(SiMe3)2} (1) lead to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24a512da4bd7e289746112c4f691fe8f
https://doi.org/10.1021/om500750y
https://doi.org/10.1021/om500750y
Publikováno v:
Synthesis. 46:1603-1612
This work describes the synthesis of compounds including both thiazolidine and 1,3,4-oxadiazole heterocyclic systems. The preparation is realized following a new synthesis route consisting of two multicomponent reactions. First 3-thiazolines are form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83e6c423fa94a1631cbec8f2cc9aa631
https://doi.org/10.1055/s-0033-1341043
https://doi.org/10.1055/s-0033-1341043
Autor:
Marion Friedemann, Marc Schmidtmann, Rüdiger Beckhaus, Vanessa Timmermann, Tim Oswald, Detlev Haase, Wolfgang Saak, Hanna Ebert
Publikováno v:
Organometallics. 33:1440-1452
Here we present the first synthetic route to bis(η5:η1-pentafulvene)zirconium complexes as well as investigations of several consecutive reactions. Sodium amalgam reduction of ZrCl4 in the presence of a bulky substituted pentafulvene in THF leads t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ba63f43636920ca6e2d98b2665a56b3
https://doi.org/10.1021/om500031s
https://doi.org/10.1021/om500031s
Publikováno v:
Organometallics. 33:1492-1498
The synthesis of the digermyl and germylsilyl hydronium borates 7[B(C6F5)4] and 8[B(C6F5)4] is reported. Spectroscopic (IR, NMR) and structural data supported by the results of density functional calculations indicate in both cases a symmetric or alm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df6fa2cda42c0f3b4df7b95b6494a367
https://doi.org/10.1021/om500154n
https://doi.org/10.1021/om500154n
Autor:
Marc Schmidtmann, Alexander Bekurdts, Detlev Haase, Rüdiger Beckhaus, Wolfgang Saak, Christian Adler
Publikováno v:
European Journal of Inorganic Chemistry. 2014:1289-1302
Invited for the cover of this issue is the group of Rudiger Beckhaus at the University of Oldenburg. The cover image shows a series of titanium amide complexes synthesized in the group’s lab. These compounds undergo spontaneous C–H bond activatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5573898cb7bd71f2887a022ada106ab2
https://doi.org/10.1002/ejic.201400022
https://doi.org/10.1002/ejic.201400022