We have developed, on the basis of a chelation-strategy, an efficient copper-catalyzed aziridination protocol with the use of 5-methyl-2-pyridinesulfonamide and Phl(OAc)(2). The reaction proceeds smoothly under mild conditions to give aziridines in moderate to good yields in the absence of external ligands or bases. The coordination-assisted approach offers the additional benefits that efficient deprotection of the N-substituent and selective aziridine ring-opening are effectively achieved.
Iron-catalysed aziridination reactions promoted by an ionic liquid
作者:Agathe C. Mayer、Anne-Frédérique Salit、Carsten Bolm
DOI:10.1039/b813655f
日期:——
A catalytic system based on iron(II) triflate, quinaldic acid and an ionic liquid allows the aziridination of olefins with equimolar amounts of iminoiodinane providing products in good to moderate yields.