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Novel cobalt-valine catalyzed O-arylation of phenols with electron deficient aryl iodides

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Abstract

A Novel cobalt-catalyzed O-arylation of phenols with electron deficient aryl iodides is described. The reaction employs cheap and easy-to-handle cobalt acetate tetrahydrate as the catalyst precursor and naturally occurring l-valine as the ligand without the use of any transmetallating or reducing agents. The new protocol offers a wide scope for a variety of phenols towards O-arylation with moderate to excellent yields with electron deficient aryl iodides.

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Acknowledgements

SMU thanks the University Grants Commission (UGC-New Delhi), India for a research fellowship. SS and NAH thank the Council of Scientific and Industrial Research (CSIR-New Delhi), India for their research fellowships. GA thanks the Kerala State Council for Science Technology and Environment (KSCSTE), Trivandrum, India for a research grant (Order no. 341/2013/KSCSTE dated 15.03.2013). We greatly acknowledge the support from Department of Science and Technology (DST-New Delhi) under the DST-PURSE programme.

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Authors and Affiliations

  1. School of Chemical Sciences, Mahatma Gandhi University, P D Hills P O, Kottayam, Kerala, 686560, India

    Sankuviruthiyil M. Ujwaldev, Salim Saranya, Nissy Ann Harry & Gopinathan Anilkumar

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  1. Sankuviruthiyil M. Ujwaldev
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  2. Salim Saranya
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  3. Nissy Ann Harry
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  4. Gopinathan Anilkumar
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Correspondence to Gopinathan Anilkumar.

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Ujwaldev, S.M., Saranya, S., Harry, N.A. et al. Novel cobalt-valine catalyzed O-arylation of phenols with electron deficient aryl iodides. Monatsh Chem 150, 339–346 (2019). https://doi.org/10.1007/s00706-018-2324-6

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  • DOI: https://doi.org/10.1007/s00706-018-2324-6

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