摘要:
The Diels-Alder reaction of 1,3-dienes with alpha,beta-unsaturated ketones adjacent to planar chiral (eta(4)-1,3-diene)Fe(CO)(3) complexes in the presence of Lewis acid proceeded diastereoselectively. The dienophiles reacted with cyclopentadiene to give the endo adducts stereoselectively. The Lewis acid affected remarkably the diastereoselectivity in the reaction.