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9 results on '"Rajendran, Rajarajan"'

6. Cost Efficient Synthesis of Diaryl Ethers Catalysed by CuI, Imidazolium Chloride and Cs2CO3.

Author

Paul, Sudeep, Joy, Bony P., Rajendran, Rajarajan, and Gudimetla, Vittal B.

Subjects
ETHER synthesis, ARYL chlorides, CHLORIDES, CESIUM iodide, ETHERS, CATALYSIS
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. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
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8. Pleural effusion masquerading as pseudotumor

Author

Emmanuel Bhaskar, Prathipati Swathi, Subash Chandhar, and Rajendran Rajarajan

Subjects
lcsh:RC705-779, Pulmonary and Respiratory Medicine, Case Letters, medicine.medical_specialty, Text mining, business.industry, Pleural effusion, medicine, lcsh:Diseases of the respiratory system, Radiology, business, medicine.disease
Published
2014

9. Cost Efficient Synthesis of Diaryl Ethers Catalysed by CuI, Imidazolium Chloride and Cs2CO3.

Author

Paul, Sudeep, Joy, Bony P., Rajendran, Rajarajan, and Gudimetla, Vittal B.

Subjects
*ETHER synthesis, *ARYL chlorides, *CHLORIDES, *CESIUM iodide, *ETHERS, *CATALYSIS
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. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

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