Ring Opening of a Trisubstituted Aziridine With Amines: Regio- and Stereoselective Formation of Substituted 1,2-Diamines
作者:Brandon T. Kelley、Madeleine M. Joullié
DOI:10.1021/ol101584z
日期:2010.10.1
substituted 1,2-diamines via nucleophilic ring opening of a trisubstituted ethynyl aziridine was performed with complete regio- and stereoselective control. Various amines with different levels of nucleophilicity were employed and gave similar results. The ring opening reaction is not limited to ethynyl aziridines, as other alkyl trisubstituted aziridines gave the same results. This method allows for
Possible Reason for the Unusual Regioselectivity in Nucleophilic Ring Opening of Trisubstituted Aziridines under Mildly Basic Conditions
作者:Brandon T. Kelley、Patrick Carroll、Madeleine M. Joullié
DOI:10.1021/jo5006685
日期:2014.6.6
3-Trisubstituted aziridines are known to undergo ringopening at the more substituted carbon under mildly basic conditions. However, the reason for the formation of the more sterically encumbered product has never been examined. Several trisubstituted aziridines, with different substitution patterns at the C-2 and C-3 carbons, were synthesized to change the electronics of the aziridinering system. These