A new strategy for ring modification of metallocenes: carbodiimide Insertion into the eta(5)-Y-C5H5 bond and subsequent isomerization.
Unusual insertion of carbodiimide into the Y-Cp (Cp = C(5)H(5)) bond and isomerization of the resulting cyclopentadienyl (Cp)-substituted amidinate complex to the amidino-substituted Cp complex have been established, representing an efficient and simple method for ring modification of sensitive metallocenes. All products, including the rare four-center interaction precursor of the insertion, have been characterized by X-ray structural analyses.
Pi
Chengfu
C
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China.
Li
Xiaoqing
X
Zhang
Lili
L
Liu
Ruiting
R
Weng
Linhong
L
Zhou
Xigeng
X