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.
Synthesis of 1,4-Diketones by Reaction of Bicyclic Lactams Derived from 4-Oxoalkanoic Acids with Organolithium Compounds
作者:Christine Wedler、Hans Schick
DOI:10.1055/s-1992-26159
日期:——
Bicyclic lactams obtained from ethyl 4-oxoalkanoates and 2-aminoethanol add saturated and unsaturated aliphatic lithium compounds forming the corresponding 1,4-diketones in 41-61% yield after acidic hydrolysis.