Insertion of Carbodiimide into the Ln-C -Bond of Organolanthanide Complexes. Synthesis, Reaction, and Characterization of Organolant
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- 作者：Jie Zhang ; Ruyi Ruan ; Zehuai Shao ; Ruifang Cai ; Linhong Weng ; and Xigeng Zhou
- 刊名：Organometallics
- 出版年：2002
- 出版时间：April 1, 2002
- 年：2002
- 卷：21
- 期：7
- 页码：1420 - 1424
- 全文大小：71K
- 年卷期：v.21,no.7(April 1, 2002)
- ISSN：1520-6041
文摘
The synthesis, structures, and reactivity of new lanthanocene complexes incorporatingamidinate ligand [tBuN
C(nBu)NtBu] are described. Treatment of Cp2LnnBu (Ln = Er(1), Y (2), Gd (3)) with N,N'-di-tert-butylcarbodiimide results in monoinsertion of carbodiimideinto the Ln-C 
-bond to yield the title compounds Cp2Ln[tBuNC(nBu)NtBu] (Ln = Er(4), Y (5), Gd (6)). Complexes 4-6 were characterized by elemental analysis and IR andmass spectroscopies. The structures of complexes 4 and 5 were determined through X-raysingle-crystal diffraction analysis. It is shown that compound 5 is a fine catalyst forcyclotrimerization of phenyl isocyanate.
C(nBu)NtBu] are described. Treatment of Cp2LnnBu (Ln = Er(1), Y (2), Gd (3)) with N,N'-di-tert-butylcarbodiimide results in monoinsertion of carbodiimideinto the Ln-C -bond to yield the title compounds Cp2Ln[tBuNC(nBu)NtBu] (Ln = Er(4), Y (5), Gd (6)). Complexes 4-6 were characterized by elemental analysis and IR andmass spectroscopies. The structures of complexes 4 and 5 were determined through X-raysingle-crystal diffraction analysis. It is shown that compound 5 is a fine catalyst forcyclotrimerization of phenyl isocyanate.