Synthesis 2013; 45(17): 2431-2437
DOI: 10.1055/s-0033-1339376
paper
© Georg Thieme Verlag Stuttgart · New York

Efficient Multicomponent Synthesis of Mono-, Bis-, and Tris-1,2,3-triazoles Supported by Hydroxybenzene Scaffolds

Daniel Mendoza-Espinosa
a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, C.P. 02200, México D.F., México
,
Guillermo E. Negrón-Silva*
a   Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco, Avenida San Pablo No. 180, C.P. 02200, México D.F., México
,
Leticia Lomas-Romero
b   Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, C.P. 09340, México D.F., México
,
Atilano Gutiérrez-Carrillo
b   Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, C.P. 09340, México D.F., México
,
Delia Soto-Castro
c   Departamento de Química, CINVESTAV-IPN, Apdo. Postal 14-740, 07000, México D.F., México   Fax: +52(55)53189000   Email: gns@correo.azc.uam.mx
› Author Affiliations
Further Information

Publication History

Received: 02 May 2013

Accepted after revision: 17 June 2013

Publication Date:
23 July 2013 (online)


Abstract

A versatile one-pot synthesis of a series of mono-, bis- and tris-1,2,3-triazoles supported by commercially available hydroxybenzene scaffolds has been developed employing click chemistry. The multicomponent copper(I)-catalyzed 1,3-dipolar cycloaddition of sodium azide, propargyl bromide, and a para-substituted benzyl derivative yields N-benzyl-functionalized triazoles featuring several electron-donating or electron-withdrawing groups. Despite the preparation of highly substituted molecules, reaction conditions that provides good yields involved room temperature, times that oscillate between 16 and 24 hours, and catalyst loads ranging from 5–10 mol%. The present methodology could be useful for the building up of multi-triazole libraries easily tunable with donor or attractor functional groups.