The consecutive Sonogashira coupling of acid chlorides with terminal alkynes, followed by 1,3-dipolar cycloaddition under dielectric heating of in situ generated nitrile oxides from hydroximinoyl chlorides furnishes isoxazoles in moderate to good yields in the sense of a one-pot three-component reaction.
在介电加热条件下,通过
羟胺酰
氯现场生成的腈氧化物与末端
炔烃进行连续的Sonogashira偶联,随后进行1,3-偶极环加成反应,以中等到良好的产率制备了
异恶唑,实现了一种一锅法三组分反应。