[2+2] Cycloadduct of Titanium Silylidene and Benzonitrile
作者:Vladimir Ya. Lee、Satoru Horiguchi、Olga A. Gapurenko、Ruslan M. Minyaev、Vladimir I. Minkin、Heinz Gornitzka、Akira Sekiguchi
DOI:10.1002/ejic.201900601
日期:2019.10.31
The first [2+2] cycloadduct of the transition metal silylene complex and nitrile was synthesized by the reaction of titanium silylidene and benzonitrile. Only one regioisomer was exclusively isolated, in which the C atom of the nitrile group was bound to titanium whereas the N atom was bound to silicon, which was explained by steric effects. Based on its NMR spectroscopic and X‐ray crystallographic
[2+2] Cycloaddition of the Schrock titanium silylidene and acetylene
作者:V. Ya. Lee、O. A. Gapurenko、V. I. Minkin、S. Horiguchi、A. Sekiguchi
DOI:10.1007/s11172-016-1425-9
日期:2016.4
Abstract[2+2] Cycloadduct of the titanium silylidene Cp2Ti(thf)=Si[Si3(SiMeBut2)4] and acetylene was readily prepared, isolated, and characterized by NMR spectroscopy and computational studies of the Me3Si-substituted model. Geometric features of the model, based on its optimized geometry, suggest that the best structural description for such [2+2] cycloadduct is a metallacycle rather than a π complex