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Applicant:
Central University of Tamil Nadu 
Author:
Sudeep Paul Bony P. Joy Rajarajan Rajendran Dr. Vittal B. Gudimetla 
Corresponding Authors:
Vittal B. Gudimetla 
DOI #:
https://doi.org/10.1002/slct.201900473 
Title:
Cost Efficient Synthesis of Diaryl Ethers Catalysed by CuI, Imidazolium Chloride and Cs2CO3 
Journal:
ChemistrySelect 
Year:
2019 
Volume:
Page:
7181-7186 
Keywords:
Carbenes, Cross coupling, Diaryl ethers, Ullmann O-arylation, Reaction mechanisms 
Abstract:
Synthetically versatile imidazolium chlorides, especially 1,3‐bis‐(2,6‐diisopropylphenyl)‐imidazolium chloride (IPrHCl) along with copper (I) iodide and cesium carbonate, were found to be useful to form C−O bonds via coupling of phenols and aryl/heteroaryl bromides. In this catalysis, the metal:ligand (Cu:IPr) loading was optimised to 1.0 mol%, making it an inexpensive and a simple one pot catalytic route for synthesising a variety of diaryl ethers. The catalytic cycle was probed by UV‐Vis, FT‐IR and HRMS techniques confirming involvement of a copper‐imidazolium‐carbonate complex. 
Entered by:
Vittal Babu Gudimetla on 2020-09-03 
 
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