Reaction of furan-2(3H)-ones with 1,2-binucleophiles
摘要:
Reactions of 5-substituted furan-2(3H)-ones with ethylenediamine, 2-aminoethanol, and o-aminophenol do not stop at the stage of formation of the corresponding 4-oxoalkanoic acid amides but lead to new bi- and tricyclic structures as a result of double intramolecular cyclodehydration.