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Hagemeister, Timo; Jutzi, Peter; Stammler, Anja; Stammler, Hans-Georg
Canadian journal of chemistry, 11/2003, Letnik: 81, Številka: 11Journal Article
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 1 H NMR spectroscopy.Key words: amino-functionalized indenes, silicon-bridged, ansa-metallocenes, chirality, regioselectivity, amine elimination chemistry.
