Oxidative Rearrangement of 3-Aminoindazoles for the Construction of 1,2,3-Benzotriazine-4(3<i>H</i>)-ones at Ambient Temperature
作者:Yao Zhou、Ya Wang、Yixian Lou、Qiuling Song
DOI:10.1021/acs.orglett.8b02813
日期:2018.10.19
A novel oxidative rearrangement of 3-aminoindazoles is reported, enabling the production of diverse functionalized 1,2,3-benzotriazine-4(3H)-ones in good yields at room temperature. The key success of this unprecedented transformation of 3-aminoindazoles is the use of water as cosolvent, which could facilitate the halogen-induced ring expansion of 3-aminoindazoles under oxidative conditions.
报道了3-氨基吲唑的新型氧化重排,使得能够在室温下以高收率生产各种官能化的1,2,3-苯并三嗪-4(3 H)-。3-氨基吲唑这种前所未有的转化的关键成功是使用水作为助溶剂,它可以促进3-氨基吲唑在氧化条件下卤素诱导的环膨胀。