Lanthanide(III)-Catalyzed Synthesis of <i>trans</i>-Diaminocyclopentenones from Substituted Furfurals and Secondary Amines via a Domino Ring-Opening/4π-Electrocyclization Pathway
作者:Afton Hiscox、Kauan Ribeiro、Robert A. Batey
DOI:10.1021/acs.orglett.8b02711
日期:2018.11.2
A strategy toward the synthesis of trans-4,5-diaminocyclopent-2-enones is described. This core motif is embedded in the marinesponge derived alkaloids agelamadin B and nagelamide J. A variety of 2-substituted trans-4,5-diaminocyclopent-2-enones were synthesized in good to quantitative yields using lanthanide(III) catalysis. The products were formed exclusively as the trans-diastereomers via a mechanism