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


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 Fe?O?-Co?O? 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.

SUBMITTER: Gade VB 

PROVIDER: S-EPMC5923576 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Iron Oxide-Cobalt Nanocatalyst for <i>O</i>-<i>tert</i>-Boc Protection and <i>O-</i>Arylation of Phenols.

Gade Vilas B VB   Goswami Anandarup A   Varma Rajender S RS   Shelke Sharad N SN   Gawande Manoj B MB  

Nanomaterials (Basel, Switzerland) 20180417 4


Efficient and general protocols for the <i>O</i>-<i>tert</i>-boc protection and <i>O</i>-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 Mic  ...[more]

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