1. For reviews and some recent examples, see: for silicon: J. S.Panek, in Comprehensive Organic Chemistry: Selectivity, Strategy and Efficiency in Modern Organic Chemistry, ed. S. L. Schreiber, Pergamon Press, Oxford, 1991, vol. 1, p. 579;
2. L. Birkofer and O.Stuhl, in The Chemistry of Organic Silicon Compounds, eds. S. Patai and Z. Rappoport, Wiley, New York, 1989, ch. 10;
3. E. W. Colvin , Silicon Reagents in Organic Synthesis, Academic Press, London, 1988;
4. Carbonyl-ene reaction with vinylsilanes: silicon as a controlling element for regio- and stereochemistry