Substituted eta(4)-[3(E),5(E)-heptadien-2-ol)Fe(CO)(3) complexes 10a,b
, 11a,b or the corresponding acetate derivatives 14, 20, 23, 25 and 28
undergo highly stereoselective Lewis acid mediated substitution react
ions with various nucleophiles, including R(3)Al reagents, ketene sily
l acetals, allyltributylstannane, allyltrimethylsilane, and trimethyls
ilylazide. Evidence is presented that these reactions proceed with ret
ention of configuration.