skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Creators/Authors contains: "Fosu, E"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; (, Tetrahedron)
    Copper-mediated methodologies for the arylation of bis-azolium salts and bis-azoles are efficient pathways to access symmetrical and unsymmetrical N-heterocyclic carbene precursors. The arylation of bis-azolium salts with various aryl halides was achieved in moderate yields to furnish numerous C2-arylated bis-azolium salts. Access of C2-arylated bis-azolium salts from bis-azoles was also achieved in a single pot domino reaction via the use of iodonium salts as embedded electrophiles. The latter methodology utilizes the aryl iodide byproduct from the N-arylation step for the C–H activation step to mitigate waste and the need to recycle. We also demonstrated the use of these azolium salts in metalation and found success in obtaining metal complexes containing abnormal N-heterocyclic carbenes. 
    more » « less
    Free, publicly-accessible full text available January 15, 2027