Novel Microwave-Assisted One-Pot Synthesis of Isoxazoles by a Three-Component Coupling-Cycloaddition Sequence
作者:Thomas Müller、Benjamin Willy、Frank Rominger
DOI:10.1055/s-2007-1000856
日期:2008.1
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。