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Abstraction of a pyridine ligand from Weiss' reagent ([PhI(Pyr)2]2+) using BF3-Et2O was found to activate Weiss' reagent towards electrophilic aromatic substitution reactions. The activated species can be isolated when 4-DMAP… Click to show full abstract
Abstraction of a pyridine ligand from Weiss' reagent ([PhI(Pyr)2]2+) using BF3-Et2O was found to activate Weiss' reagent towards electrophilic aromatic substitution reactions. The activated species can be isolated when 4-DMAP is used as the pyridine ligand and was determined to be [PhI(4-DMAP)]2+ in solution. The isolated cation was reactive in electrophilic aromatic substitution reactions towards mesitylene, xylene and toluene that Weiss' reagent itself does not react with.
Keywords:
lewis acid;
weiss reagent;
phi dmap;
acid activation;
phi pyr
Journal Title: Chemical communications
Year Published: 2021
Link to full text (if available)
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Journal Title: Chemical communications
Year Published: 2021
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!