- Configuration and predominant conformations of 5-isopropyl-2,2,4-trimethyl-1,3-dioxa-2-silacyclohexane stereoisomers
-
The stereochemistry of 5-isopropyl-2,2,4-trimethyl-1,3-dioxa-2-silacyclohexane (mixture of stereoisomers) and model 5-isopropyl-2,2-dimethyl-1,3-dioxa-2-silacyclohexane was studied by 1H and 13C NMR spectroscopy. The molecules of the latter compound and of the trans isomer of the trimethyl derivative exist mainly in the chair conformation with the equatorial isopropyl group, and the molecules of the cis isomer, in the 3,6-twist form. The experimental data were confirmed by AM1 and MM2 calculations of the optimal geometry.
- Kuznetsov,Gvozdik,Bochkor,Novikov,Spirikhin
-
p. 778 - 783
(2007/10/03)
-