Understanding the Behavior of N-Tosyl and N-2-Pyridylsulfonyl Imines in CuII-Catalyzed Aza-Friedel−Crafts Reactions
摘要:
[GRAPHICS]The different behavior of N-tosyl imines and N-(2-pyridyl)sulfonyl imines in Cu-II-catalyzed AFCR is described. DFT theoretical calculations on the mode of coordination of the copper atom to both types of substrates allow understanding this different reactivity.
Alkylation of heteroarenes by using aldehydes is a direct approach to increase molecular complexity, which however often involves the use of stochiometric oxidant, strong acid, and high temperature. This study concerns an energy-efficient electrochemical alkylation of heteroarenes by using aldehydes undermildconditions without mediators. Interestingly, the graphite anode can trigger aldehyde cationic