One-pot, efficient, and regioselective syntheses of 1,4-disubstituted 1,2,3-triazoles using aryldiazonium silica sulfates in water
摘要:
A one-pot, efficient, and straightforward procedure for the copper-catalyzed synthesis of 1,4-disubstituted 1,2,3-triazoles is studied by in situ generation of aryl azides via the reaction of aryldiazonium silica sulfates and sodium azide, followed by coupling with a terminal alkyne. These reactions are carried out in water at room temperature without using any additional ligands. (C) 2012 Elsevier Ltd. All rights reserved.
Aryldiazonium silica sulfates as efficient reagents for Heck-type arylation reactions under mild conditions
作者:Amin Zarei、Leila Khazdooz、Azadeh Pirisedigh、Abdol R. Hajipour、Hojjat Seyedjamali、Hamidreza Aghaei
DOI:10.1016/j.tetlet.2011.06.095
日期:2011.8
An efficient and straightforward procedure for Heck-type arylation reactions was studied using aryldiazonium silica sulfates and olefins in the presence of a catalytic amount of Pd(OAc)(2). These reactions were carried out in water at room temperature without using a base or additional ligands. The use of a non-toxic solvent, a simple and clean work-up, short reaction times, and good yields are advantages of this method. (C) 2011 Elsevier Ltd. All rights reserved.