14585-67-2Relevant academic research and scientific papers
Chiral silicon-bridged 2-(N,N-dialkylamino)ethyl-substituted indenes as potential precursors for ansa-zirconocenes
Hagemeister, Timo,Jutzi, Peter,Stammler, Anja,Stammler, Hans-Georg
, p. 1255 - 1262 (2003)
Chiral amino-functionalized silicon-bridged indene derivatives 4a-4c were synthesized from 3-(2-(N,N-dialkylamino)ethyl)indenes 2a-2c. The C-Si coupling reactions are regioselective, leading exclusively to the formation of 1,3-disubstituted isomers in a rac/meso ratio of 1:1, as indicated by NMR spectroscopy. The solid-state structure of the dimethylsilyl-bridged bisindene (R,R)-4a is described. The formation of corresponding ansa-zirconocenes via amine elimination chemistry was monitored by 1H NMR spectroscopy.
