The electronic effect resulting from silicon can be used to control various types of organic reactions. Recent examples of silicon-promoted reactions include the Nef reaction'and ring contracti~ n;~~~ those of silicon-directed reactions include the aldol condensation: alkylative cy~ lization,~ Baeyer-Villiger~ xidation,~,~ Bamford-Stevens reaction, 8 Beckmann fragmentati~ n,~ carboncarbon bond cleavage, lOJ1 decarbonylation~,~~ J~ ...
