4,5-Dihydro-1,2,4-oxadiazole as a Single Nitrogen Transfer Reagent: Synthesis of Functionalized Isoxazoles Assisted by Sc(OTf)<sub>3</sub> or Au(I)/Sc(OTf)<sub>3</sub> Synergistic Catalysis
作者:Ali Wang、Peizhuo Lv、Yuanhong Liu
DOI:10.1021/acs.orglett.3c01566
日期:2023.6.16
heterocycle, 4,5-dihydro-1,2,4-oxadiazole, was found to act as a single nitrogen atom transfer reagent via elimination of a ketone/aldehyde and a nitrile. This reagent was successfully applied for the synthesis of isoxazoles from ynones promoted by Sc(OTf)3 or through Au(I)/Sc(OTf)3 synergistic catalysis. The efficiency of this protocol was also demonstrated by its application in modifications of structurally
五元 N–O 杂环 4,5-二氢-1,2,4-恶二唑被发现通过消除酮/醛和腈作为单氮原子转移试剂。该试剂已成功应用于由Sc(OTf) 3或Au(I)/Sc(OTf) 3协同催化促进的炔酮合成异恶唑。该协议的效率也通过其在结构复杂的天然产品和药物的修改中的应用得到证明。