[VO(PS-BBMA)](SO4) catalyzed α-oxygenation of benzylamines to amides in solvent free condition

Polymer anchored [VO(PS-BBMA)]SO4 and unsupported [VO(BBMA)]SO4 catalysts were synthesized and characterized by elemental analyses, FT-IR, ESR, UV–vis diffuse reflectance spectroscopy (DRS), thermogravimetric analysis (TGA), and vibrating sample magnetometry (VSM). A protocol for the synthesis of be...

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Bibliographic Details
Published inCatalysis communications Vol. 121; pp. 89 - 94
Main Authors Renuka, M.K., Gayathri, V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 05.03.2019
Subjects
[VO(BBMA]SO4
[VO(PS-BBMA]SO4
Benzamide
Benzyl amine
H2O2
α-oxygenation
Benzyl amine
[VO(PS-BBMA]SO4
[VO(BBMA]SO4
H2O2
α-oxygenation
Benzamide
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Summary:Polymer anchored [VO(PS-BBMA)]SO4 and unsupported [VO(BBMA)]SO4 catalysts were synthesized and characterized by elemental analyses, FT-IR, ESR, UV–vis diffuse reflectance spectroscopy (DRS), thermogravimetric analysis (TGA), and vibrating sample magnetometry (VSM). A protocol for the synthesis of benzamides from benzylamine has been developed using [VO(PS-BBMA]SO4 as an effective catalyst under solvent free conditions in presence of H2O2. The reactions provide good yields of the corresponding amide products with substrate scope and excellent functional group compatibility. The developed catalyst can be facilely recovered, heterogeneous, compared with unsupported analogue and reused six times without significant decrease in its activity. [Display omitted] •Novel unsupported and polymer supported complexes were prepared and characterized•Geometry of the complexes were confirmed by CHN, ESR, IR, Electronic and LC-M spectrum•Elegant method for the preparation of amides using H2O2 in solvent free conditions•The developed catalyst was facilely recovered, truly heterogeneous and reusable
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2019.01.002