1. Absolute configurations of the compounds studied: rac-3andrac-6, racemic mixtures consisting of (Λ)- and (Δ)-enantiomers;4a,5a, and7a-9a, (Λ,S,S)-configuration;4b,5b, and7b-9b, (Δ,S,S)-configuration.
2. Dragota, S.; Bertermann, R.; Burschka, C.; Tacke, R.13th InternationalSymposium on Organosilicon Chemistry−35th Organosilicon Symposium; Guanajuato, Mexico, August 25−30, 2002; Abstract P2-46, p 162.