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A Metal-Free and Microwave-Assisted Efficient Synthesis of Diaryl Sulfones

Dalip Kumar*, V. Arun, Meenakshi Pilania, K. P. Chandra Shekar

*Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India, Email:

D. Kumar, V. Arun, M. Pilania, K. P. Chandra Shekar, Synlett, 2013, 24, 831-836.

DOI: 10.1055/s-0032-1317803

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A metal-free and eco-friendly coupling of readily available diaryliodonium salts and arenesulfinates in PEG-400 under microwave irradiation enables the preparation of various diaryl sulfones in high yields and short reaction times under mild conditions. Furthermore, the coupling of diaryliodonium with arenesulfinate salts with and without copper iodide provides a convenient access to various diaryl sulfones with high selectivity.

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Key Words

aryl sulfones, diaryliodonium salts, arenesulfinate salts, microwave synthesis, green chemistry, polyethylene glycol (PEG-400)

ID: J60-Y2013-0950