Intramolecular reactions of compounds derived from sugars. Part II.1 Stereo-controlled intramolecular diels-alder cyclizations of 16(E,Z),8-nonatrienes and 1-AZA-6(E,Z),8-nonatrienes
Intramolecular Diels-Alder reactions of E,Z mixtures of nonatrienes 6 and 9 led to the exclusive formation of the bicyclic compounds 10 and 11 respectively.