Surfactant-Type Brønsted Acid Catalyzed Stereoselective Synthesis of<i>trans</i>-3-Alkenyl Indazoles from Triazenylaryl Allylic Alcohols in Water
作者:Weijun Yang、Zhigen Yang、Lijun Xu、Lili Zhang、Xin Xu、Maozhong Miao、Hongjun Ren
DOI:10.1002/anie.201306632
日期:2013.12.23
Testing the waters: An efficient dodecyl benzene sulfonic acid (DBSA) catalyzed approach to the synthesis of the title compounds in water is reported. Furthermore, upon cleavage of the pyrrolidine group from the trans‐3‐alkenyl‐2‐pyrrolidine‐2H‐indazoles with Zn in CH3COOH, trans‐3‐alkenyl‐1H‐indazoles are obtained in good to excellent yields.
测试水域:报告了一种有效的十二烷基苯磺酸(DBSA)催化的方法,用于在水中合成标题化合物。此外,在从所述吡咯烷基团的裂解反式-3-烯基-2-吡咯烷-2- ħ用Zn -indazoles在CH 3 COOH,反式-3-烯-1- ħ -indazoles在良好获得优异的产率。