An environmentally friendly approach to the green synthesis of azo dyes with aryltriazenes via ionic liquid promoted C-N bonds formation
作者:Yonghong Zhang、Yonghong Liu、Xiaoqian Ma、Xia Ma、Bin Wang、Hongguang Li、Yan Huang、Chenjiang Liu
DOI:10.1016/j.dyepig.2018.05.073
日期:2018.11
An efficient and green approach for the synthesis of azo dyes has been developed via the Brønsted acidic ionicliquid (IL) promoted diazo coupling reaction of naphthols with aryltriazenes. The reaction was carried out with the aryltriazenes as diazotizing agents, the Brønsted acidic ionicliquids as the promoter, and water as the green solvent at room temperature under air and metal-free conditions