Liquid Phase Bromination of Decane, Undecane, and Dodecane with N-Bromosuccinimide

Ijam, Mousa J.; Al-Saleh, Balkis

doi:10.1021/i360066a011

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“…Different types of protocols have been developed for the bromination of aromatic substrates, but the most commonly used reagent, N -bromosuccinic imide (NBS), possesses easy handling and low toxicity . However, when NBS is used for the bromination of aromatic compounds, a large amount of a strong Lewis or Bronsted acid is usually required as the catalyst in harsh reaction conditions …”

Section: Introductionmentioning

confidence: 99%

Gold-Decorated 3D 2,6-Diaminopyridine Network: A Robust Catalyst for the Bromination of Aromatic Compounds

Pourjavadi

Keshavarzi

Hosseini

et al. 2018

Ind. Eng. Chem. Res.

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This article reports the synthesis of a magnetic heterogeneous catalyst through the decoration of gold ions onto the cross-linked polymeric nanocomposite from 2,6-diaminopyridine. The activity of the resulting catalyst was then evaluated in the bromination of aromatic compounds. The nitrogen rich support showed a high affinity to gold ions, and the measured content of Au was 0.76 mmol g −1 . The structure of the catalyst was fully characterized by using Fourier-transform infrared spectroscopy, thermogravimetric analysis, atomic absorption spectroscopy, transmission electron microscopy, scanning electron microscope, energy-dispersive X-ray spectroscopy, Brunauer− Emmett−Teller surface area analysis, a vibrating sample magnetometer, and X-ray diffraction techniques. Various substituted arenes were converted to the corresponding Br-containing aromatic compounds in a good to excellent yield using 300 mg of catalyst. It is worth mentioning, that the catalyst was simply collected from the solution and reused in eight cycles without significant loss of its activity.

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Section: Introductionmentioning

confidence: 99%