Becker Lisanne, Arndt Perdita, Spannenberg Anke, Rosenthal Uwe
Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock (Germany).
Chemistry. 2014 Sep 22;20(39):12595-600. doi: 10.1002/chem.201403538. Epub 2014 Aug 14.
The reactions of the Group 4 metallocene alkyne complexes rac-(ebthi)M(η(2) -Me3 SiC2 SiMe3 ) (1 a: M=Ti, 1 b: M=Zr; rac-(ebthi)=rac-1,2-ethylene-1,1'-bis(η(5) -tetrahydroindenyl)) with PhCN were investigated. For 1 a, an unusual nitrile-nitrile coupling to 1-titana-2,5-diazacyclopenta-2,4-diene (2) at ambient temperature was observed. At higher temperature, the CC coupling of two nitriles resulted in the formation of a dinuclear complex with a four-membered diimine bridge (3). The reaction of 1 b with PhCN afforded dinuclear compound 4 and 2,4,6-triphenyltriazine. Additionally, the reactivity of 1 b towards other nitriles was investigated.
研究了第4族茂金属炔烃配合物rac-(ebthi)M(η(2)-Me3SiC2SiMe3)（1 a：M = Ti，1 b：M = Zr；rac-(ebthi)=rac-1,2-亚乙基-1,1'-双(η(5)-四氢茚基)）与PhCN的反应。对于1 a，在室温下观察到一种不寻常的腈-腈偶联反应生成1-钛杂-2,5-二氮杂环戊-2,4-二烯（2）。在较高温度下，两个腈的CC偶联反应生成了具有四元二亚胺桥的双核配合物（3）。1 b与PhCN的反应得到了双核化合物4和2,4,6-三苯基三嗪。此外，还研究了1 b对其他腈的反应活性。
