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Nanomaterials 2018, 8(4), 246; https://doi.org/10.3390/nano8040246

Iron Oxide-Cobalt Nanocatalyst for O-tert-Boc Protection and O-Arylation of Phenols

1
P. G. & Research Center, Department of Chemistry, S. S. G. M. College, Kopargaon, Dist., Ahmednagar 423601, India
2
Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research Vadlamudi, Guntur 522213, India
3
Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
*
Authors to whom correspondence should be addressed.
Received: 24 February 2018 / Revised: 4 April 2018 / Accepted: 12 April 2018 / Published: 17 April 2018
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Abstract

Efficient and general protocols for the O-tert-boc protection and O-arylation of phenols were developed in this paper using a recyclable magnetic Fe3O4-Co3O4 nanocatalyst (Nano-Fe-Co), which is easily accessible via simple wet impregnation techniques in aqueous mediums from inexpensive precursors. The results showed the catalysts were well characterized by XRD (X-ray Diffraction), ICP-AES (Inductive Coupled Plasma Atomic Emission Spectroscopy), TEM (Transmission Electron Microscopy), TOF-SIMS (Time-Of-Flight Secondary Ion Mass Spectrometry) and XPS (X-ray Photoelectron Spectroscopy). The O-tert-boc protection and O-arylation of phenols was accomplished in good to excellent yields (85–95%) and the catalyst was reusable and recyclable with no loss of catalytic activity for at least six repetitions. View Full-Text
Keywords: magnetic nanocatalysts; Fe3O4-Co3O4; O-tert-butoxycarbonylation; O-arylation; phenols; ethers magnetic nanocatalysts; Fe3O4-Co3O4; O-tert-butoxycarbonylation; O-arylation; phenols; ethers
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Gade, V.B.; Goswami, A.; Varma, R.S.; Shelke, S.N.; Gawande, M.B. Iron Oxide-Cobalt Nanocatalyst for O-tert-Boc Protection and O-Arylation of Phenols. Nanomaterials 2018, 8, 246.

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