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Monatshefte für Chemie - Chemical Monthly

, Volume 150, Issue 2, pp 339–346 | Cite as

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

  • Sankuviruthiyil M. Ujwaldev
  • Salim Saranya
  • Nissy Ann Harry
  • Gopinathan AnilkumarEmail author
Original Paper
  • 55 Downloads

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.

Graphical abstract

Keywords

Cobalt catalysis C–O coupling Etherification Valine Reducing agent 

Notes

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.

Supplementary material

706_2018_2324_MOESM1_ESM.docx (17.1 mb)
Supplementary material 1 (DOCX 17529 kb)

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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Chemical SciencesMahatma Gandhi UniversityKottayamIndia

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