An efficient cross-coupling between acylzirconocenes, readily prepared by hydrozirconation/carbonylation of alkenes, and diaryliodonium tetrafluoroborates is reported. This procedure enables the synthesis of a variety of alkyl-aryl-ketones upon simple catalysis with copper cyanide without the need of additional ligands and only requires a low pressure of carbon monoxide generated in situ, in a two-chamber
Highly efficient iron-catalyzed conjugate reduction of α,β-unsaturated ketones with polymethylhydrosiloxane
作者:Hang Wang、Libo Chen、Yushuang Chen、Yulong Zhang
DOI:10.1039/d4ob00664j
日期:——
An iron-catalyzed ligand free conjugate reduction of α,β-unsaturatedketones with PMHS (polymethylhydrosiloxane) was reported to deliver the corresponding carbonylcompounds with up to 93% yield. This operationally simple protocol shows a broad substrate scope using readily available PMHS as a cost-effective and easy-to-handle reductive reagent.