Broadening the Synthetic Scope of the Iron(III)-Catalyzed Aza-Prins Cyclization
作者:Rubén M. Carballo、Guillermo Valdomir、Martín Purino、Víctor S. Martín、Juan I. Padrón
DOI:10.1002/ejoc.200901372
日期:2010.4
The nature and influence of the N-sulfonyl group in aza-Prinscyclization and the reactivity of the six-membered aza-cycle generated has been studied. The aza-Prinscyclization of γ,δ-unsaturated amines with a tosyl group at the nitrogen atom produces 2-alkyl-4-halo-1-tosyl-1,2,5,6-tetrahydropyridines with a halovinyl function, extraordinarily stable to further derivatization and detosylation conditions