Synthesis of 5-arylamino-1-arylpyrazoles from 5-aminopyrazoles with arylhalides via CuI catalyzed Ullman coupling reaction
摘要:
An efficient method for synthesis of 5-arylamino-1-arylpyrazoles was developed by Ullman coupling reaction of 5-aminopyrazoles and arylhalides in the presence of cuprous iodide (CuI) as the catalyst. The corresponding 5-N-arylaminopyrazole products were obtained in good yields (>= 65%). (c) 2012 Elsevier Ltd. All rights reserved.
Synthesis of 5-arylamino-1-arylpyrazoles from 5-aminopyrazoles with arylhalides via CuI catalyzed Ullman coupling reaction
作者:En-Chiuan Chang、Chun-Yen Chen、Li-Ya Wang、Yu-Ying Huang、Mou-Yung Yeh、Fung Fuh Wong
DOI:10.1016/j.tet.2012.11.022
日期:2013.1
An efficient method for synthesis of 5-arylamino-1-arylpyrazoles was developed by Ullman coupling reaction of 5-aminopyrazoles and arylhalides in the presence of cuprous iodide (CuI) as the catalyst. The corresponding 5-N-arylaminopyrazole products were obtained in good yields (>= 65%). (c) 2012 Elsevier Ltd. All rights reserved.