A Novel and Selective Fluoride Opening of Aziridines by XtalFluor-E. Synthesis of Fluorinated Diamino Acid Derivatives
作者:Melinda Nonn、Loránd Kiss、Matti Haukka、Santos Fustero、Ferenc Fülöp
DOI:10.1021/acs.orglett.5b00182
日期:2015.3.6
of an aminocyclopentane or cyclohexane carboxylate has been developed through a novel and efficientfluorideopening of an activated aziridine ring with XtalFluor-E. The reaction proceeded through a stereoselective aziridination of the olefinic bond of a bicyclic lactam and regioselective aziridine ringopening with difluorosulfiliminium tetrafluoroborate with the neighboring group assistance of the
Synthesis of conformationally restricted 1,2,3-triazole-substituted ethyl β- and γ-aminocyclopentanecarboxylate stereoisomers. Multifunctionalized alicyclic amino esters
作者:Loránd Kiss、Enikő Forró、Reijo Sillanpää、Ferenc Fülöp
DOI:10.1016/j.tet.2010.03.030
日期:2010.5
conformationally restricted β- or γ-amino esters with a cyclopentane skeleton were efficiently synthetized from the bicyclic β-lactam 6-azabicyclo[3.2.0]hept-3-en-7-one (1) and Vince γ-lactam (15) in five or six steps involving the azide–alkyne 1,3-dipolar cycloaddition of azido-substituted amino ester stereoisomers with nonsymmetric acetylenes. The azide–alkyne click reactions were investigated under thermal