Copper catalyzed reaction of alcohols, alkyl halides and Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>: an odorless and ligand-free route to unsymmetrical thioether synthesis
作者:Rahimeh Khezri、Mohammad Abbasi
DOI:10.1039/d2nj03164g
日期:——
A CuI-catalyzed condensation reaction between alcohols, alkylhalides, and Na2S2O3 leading to structurally diverse thioethers is reported. A variety of alkylhalides and electron-rich benzyl alcohols were employed successfully in the presence of 5 mol% CuI in PEG-200 at 110 °C. The method does not require any ligands or additives. The unsymmetrical thioethers were achieved in good to excellent yields
据报道,CuI 催化的醇、卤代烷和 Na 2 S 2 O 3之间的缩合反应产生了结构多样的硫醚。在 110 °C 下,在 PEG-200 中存在 5 mol% CuI 的情况下,成功地使用了多种烷基卤化物和富电子苯甲醇。该方法不需要任何配体或添加剂。不对称硫醚在适当的反应时间内以良好至优异的产率获得。
Iodine-Mediated Direct Generation of <i>o</i>
-Quinone Methides at Room Temperature: A Facile Protocol for the Synthesis of <i>ortho</i>
-Hydroxybenzyl Thioethers
作者:R. Sidick Basha、Chia-Wei Chen、Daggula Mallikarjuna Reddy、Chin-Fa Lee
DOI:10.1002/asia.201800233
日期:2018.9.4
An iodine‐mediated preparation of ortho‐quinonemethides (o‐QMs) from ortho‐hydroxybenzylalcohols by a C−O bond scission strategy is described. The in situ generated o‐QMs were then employed for C−S bond formation by thio‐Michael addition of thiols to provide the ortho‐hydroxybenzyl thioethers (o‐HBT) in moderate to excellent yields.