Coupling of thiols and aromatic halides promoted by diboron derived super electron donors
作者:Mario Franco、Emily L. Vargas、Mariola Tortosa、M. Belén Cid
DOI:10.1039/d1cc05294b
日期:——
We have proven that pyridine–boryl complexes can be used as superelectron donors to promote the coupling of thiols and aromatic halides through a SRN1 mechanism. The reaction is efficient for a broad substrate scope, tolerating heterocycles including pyridines, enolizable or reducible functional groups. The method has been applied to intermediates in drug synthesis as well as interesting functionalized
我们已经证明,吡啶-硼基复合物可用作超电子供体,通过 S RN 1 机制促进硫醇和芳族卤化物的偶联。该反应适用于广泛的底物范围,可耐受杂环,包括吡啶、可烯醇化或可还原的官能团。该方法已通过受控和连续的分子内电子转移过程应用于药物合成中的中间体以及有趣的功能化聚硫醚。
Ni nanoparticles on RGO as reusable heterogeneous catalyst: effect of Ni particle size and intermediate composite structures in C–S cross-coupling reaction
The present work demonstrates the C-S cross-coupling reaction between aryl halides and thiols using nickel nanoparticles (Ni NPs) supported on reduced graphene oxide (Ni/RGO) as a heterogeneouscatalyst. It is observed that the uniformly dispersed Ni NPs supported on RGO could exhibit excellent catalytic activity in C-S cross-coupling reactions and the catalytic application is generalized with diverse
Selective bis-sulfenylation reactions of aryl dihalides have been achieved by copper-catalyzed C–S coupling reactions under mild conditions of refluxing EtOH (80 °C).
芳基二卤代物的选择性双硫醚化反应已经通过铜催化的C-S偶联反应在80°C回流乙醇的温和条件下实现。
Selective <i>S</i>-arylation of thiols with <i>o</i>-OTf-substituted diaryliodonium salts toward diarylsulfides
作者:Yuxuan Zhang、Yu Wang、Limin Wang、Jianwei Han
DOI:10.1039/d3ob01922e
日期:——
We present a selective sulfenylation of ortho-OTf-substituted diaryliodonium salts with thiols. Diarylsulfides bearing vicinal OTf groups were synthesized under mild conditions, offering various versatile synthons for further transformations.