reaction shows good substrate scope and tolerates a wide range of functionalities in both azoles and sodium sulfinate substrates. Pyrazoles are also suitable for this method, various 4-halopyrazoles derivatives were obtained by using N-halosuccinimide (NXS) as the halogen source.
描述了
NBS或NIS介导的唑和亚
磺酸钠之间直接S N键的形成。该反应显示出良好的底物范围,并且在唑类和亚
磺酸钠底物中均具有宽泛的官能度。
吡唑也适用于此方法,通过使用N-卤代琥珀
酰亚胺(NXS)作为卤素源获得了各种4-卤代
吡唑衍
生物。