Palladium-catalyzed bisthiolation of terminal alkynes for the assembly of diverse (<i>Z</i>)-1,2-bis(arylthio)alkene derivatives
作者:Yin-Long Lai、Shaoxi Yan、Dan He、Li-Zhen Zhou、Zi-Shen Chen、Yu-Long Du、Jianxiao Li
DOI:10.1039/d1ra05773a
日期:——
An efficient and straightforward palladium-catalyzed three-component cascade bisthiolation of terminalalkynes and arylhydrazines with sodium thiosulfate (Na2S2O3) as the sulfur source for the assembly of functionalized (Z)-1,2-bis(arylthio)alkene derivatives is described. Using 0.5 mol% IPr–Pd–Im–Cl2 as the catalyst, a wide range of terminalalkynes and arylhydrazines are well tolerated, thus producing
以硫代硫酸钠 (Na 2 S 2 O 3 ) 作为硫源组装官能化 ( Z )-1,2-双(芳硫基)烯烃的高效且直接的钯催化三组分级联双硫醇末端炔烃和芳基肼衍生品进行了描述。使用 0.5 mol% IPr–Pd–Im–Cl 2作为催化剂,可以很好地耐受多种末端炔烃和芳基肼,从而以良好的收率生产所需的产物,具有良好的官能团耐受性和优异的区域选择性。此外,该协议可以很容易地扩大规模,显示出在有机合成和材料科学中的潜在应用。