Synthesis 2013; 45(23): 3281-3287
DOI: 10.1055/s-0033-1339763
paper
© Georg Thieme Verlag Stuttgart · New York

The Activity of Magnesium/Aluminum ‘Memory Effect’ Reconstructed Hydrotalcites in the Microwave-Assisted Synthesis of 2-Benzimidazolethiol and Its Alkylated Derivatives

Authors

  • Deysi Y. Cruz-Gonzalez

    a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, C.P. 02200 México D.F., México   Fax: +52(55)53189000   Email: gns@correo.azc.uam.mx
  • Rodrigo González-Olvera

    a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, C.P. 02200 México D.F., México   Fax: +52(55)53189000   Email: gns@correo.azc.uam.mx
  • Deyanira Angeles-Beltrán

    a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, C.P. 02200 México D.F., México   Fax: +52(55)53189000   Email: gns@correo.azc.uam.mx
  • Guillermo E. Negrón-Silva*

    a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, C.P. 02200 México D.F., México   Fax: +52(55)53189000   Email: gns@correo.azc.uam.mx
  • Rosa Santillan

    b   Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado Postal 14-740, 07000 México D.F., México
Further Information

Publication History

Received: 18 July 2013

Accepted after revision: 19 August 2013

Publication Date:
27 September 2013 (online)


Graphical Abstract

Preview

Abstract

An efficient and practical methodology for the microwave-assisted synthesis of 2-benzimidazolethiol from 1,2-benzenediamine and carbon disulfide using reconstructed hydrotalcite is described. The corresponding mono- and dialkylated derivatives of 2-benzimidazolethiol were obtained generally in good to excellent yields after short reaction times. Reconstructed hydrotalcite proved to be an efficient and reusable heterogeneous base for the alkylation reactions.

Supporting Information