Graphene Oxide as Catalyst for the Acetalization of Aldehydes at Room Temperature

Authors

  • Dr. Amarajothi Dhakshinamoorthy,

    1. Instituto Universitario de Tecnología Química CSIC UPV, Univ. Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    2. Departamento de Química, Universidad Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    Search for more papers by this author
  • Dr. Mercedes Alvaro,

    1. Departamento de Química, Universidad Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    Search for more papers by this author
  • Marta Puche,

    1. Instituto Universitario de Tecnología Química CSIC UPV, Univ. Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    Search for more papers by this author
  • Dr. Vicente Fornes,

    1. Instituto Universitario de Tecnología Química CSIC UPV, Univ. Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    Search for more papers by this author
  • Prof. Dr. Hermenegildo Garcia

    Corresponding author
    1. Instituto Universitario de Tecnología Química CSIC UPV, Univ. Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    • Instituto Universitario de Tecnología Química CSIC UPV, Univ. Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia (Spain), Fax: (+34) 9638 7807
    Search for more papers by this author

Abstract

Graphene oxide obtained through the standard Hummers oxidation of graphite and subsequent exfoliation promotes acetalization of aldehydes in methanol. It is a highly efficient reusable heterogeneous catalyst because of its advantages of absence of transition metals, sustainable resources, and high activity, large surface area, and accessibility of active sites. Analytical and spectroscopic data suggest that the sulfate groups introduced spontaneously during Hummers oxidation are the sites responsible for catalysis.

Ancillary