An Efficient Process for Pd-Catalyzed C−N Cross-Coupling Reactions of Aryl Iodides: Insight Into Controlling Factors

An investigation into Pd-catalyzed C−N cross-coupling reactions of aryl iodides is described. NaI is shown to have a significant inhibitory effect on these processes. By switching to a solvent system in which the iodide byproduct was insoluble, reactions of aryl iodides were accomplished with the sa...

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Bibliographic Details
Main Authors: Fors, Brett P., Buchwald, Stephen Leffler, Davis, Nicole Rose
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:en_US
Published: American Chemical Society (ACS) 2013
Online Access:http://hdl.handle.net/1721.1/82102
https://orcid.org/0000-0003-3875-4775
Description
Summary:An investigation into Pd-catalyzed C−N cross-coupling reactions of aryl iodides is described. NaI is shown to have a significant inhibitory effect on these processes. By switching to a solvent system in which the iodide byproduct was insoluble, reactions of aryl iodides were accomplished with the same efficiencies as aryl chlorides and bromides. Using catalyst systems based on certain biarylphosphine ligands, aryl iodides were successfully reacted with an array of primary and secondary amines in high yields. Lastly, reactions of heteroarylamines and heteroaryliodides were also conducted in high yields.