2,4-Dinitrophenylhydroxylamine:an efficient and more general reagent for iron-catalyzed allylic amination

摘要

2,Dinitrophenylhydroxylamine (1) is an efficient reagent for the iron-catalyzed regioselective allylic amination of olefins.Moderate to excellent yields of N-DNP-N-allyl amines (2) are obtained resulting from introduction of the N-DNP group at the less substituted vinylic carbon with accompanying double bond transposition.N-alkylation of 2 and subsequent treatment with MeNH_2 affords secondary N-alkyl-N-allyl amines (5) in good overall yield.