TAUTOMERIC TRANSFORMATIONS OF THE SCHIFF BASE OF GOSSYPOL WITH 3-AMINO-5-METHYLISOXAZOLE IN DMSO AND CHLOROFORM
The structure and tautomeric equilibria of the Schiff base of gossypol with 3-amino-5-methylisoxazole were investigated by NMR spectroscopy and quantum chemical methods. It was established that in chloroform solution the compound exists exclusively in the dienamine tautomeric form. The reasons why most Schiff bases of...