TMSN3-Bu2Sn(OAc)2: A modified and mild reagent system for Wittenberger tetrazole-synthesis
作者:Hiroki Yoneyama、Naoki Oka、Yoshihide Usami、Shinya Harusawa
DOI:10.1016/j.tetlet.2019.151517
日期:2020.2
Treatments of various nitriles with TMSN3 and Bu2Sn(OAc)2 at 30 oC in benzene for 60 h yielded the corresponding 5-substituted 1H-tetrazoles in good to excellent yields. This method is a mild and efficient alternative reagent system for Wittenberger tetrazole-synthesis that uses TMSN3 and Bu2SnO in toluene at high temperature (93–110 °C) for 24–72 h.
各种腈与TMSN的处理3和卜2的Sn(OAc)2在30 ö下在苯60小时,得到相应的5-取代的1 ħ在良好-tetrazoles到优异的产率。该方法是温和有效的Wittenberger四唑合成的替代试剂系统,该系统在高温(93–110°C)下使用甲苯中的TMSN 3和Bu 2 SnO持续24–72 h。