1204291-85-9Relevant academic research and scientific papers
Preparation of zirconium guanidinate complexes from the direct insertion of a carbodiimine and aminolysis using a guanidine. Comparison of the reactions
Chen, Shu-Jian,Dougan, Brenda A.,Chen, Xue-Tai,Xue, Zi-Ling
, p. 3443 - 3446 (2012)
Direct insertion of 1 equiv of CyNCNCy (1; Cy = cyclohexyl) into the Zr-NMe2 bonds in (Me2N)3Zr[N(SiMe 3)2] (2) and (Me2N)3Zr[Si(SiMe 3)3] (3) gave exclusively [CyNC(NMe2)NCy] Zr(NMe2)2[N(SiMe3)2] (5) and [CyNC(NMe2)NCy]Zr(NMe2)2[Si(SiMe 3)3] (6), respectively. The reaction between 2 and guanidine CyNHC(NMe2)NCy (9) gave 5 and HNMe2 through the preferred cleavage of a Zr-NMe2 bond in 2. The reaction between 3 and 9 led to the preferred cleavage of the Zr-Si(SiMe3)3 bond in 3, yielding [CyNC(NMe2)NCy]Zr(NMe2)3 (7) and HSi(SiMe3)3 and, upon cleavage of another Zr-NMe 2 bond, forming [CyNC(NMe2)NCy]2Zr(NMe 2)2 (8). The aminolysis of Zr(NMe2)4 (4) by 9 first afforded 7 and then 8. The structures of 5, 6, and 9 have been determined by X-ray diffraction.
Highly reactive metal - Nitrogen bond induced C - H bond activation and azametallacycle formation
Panda, Tarun K.,Tsurugi, Hayato,Pal, Kuntal,Kaneko, Hiroshi,Mashima, Kazushi
, p. 34 - 37 (2010/03/04)
A group 4 metal - nitrogen bond inserted into the carbon-nitrogen double bond of carbodiimides and a-diimines to afford guanidinate and amido - -imino ligand supported group 4 metal complexes, respectively. Metal - nitrogen mediated C. - H bond activation a to the nitrogen atom led to the formation of azametallacycle complexes.
