Ligand-Enabled Alkynylation of C(sp<sup>3</sup>
)−H Bonds with Palladium(II) Catalysts
作者:Haiyan Fu、Peng-Xiang Shen、Jian He、Fanglin Zhang、Suhua Li、Peng Wang、Tao Liu、Jin-Quan Yu
DOI:10.1002/anie.201610426
日期:2017.2.6
The palladium(II)‐catalyzed β‐ and γ‐alkynylation of amide C(sp3)−H bonds is enabled by pyridine‐based ligands. This alkynylation reaction is compatible with substrates containing α‐tertiary or α‐quaternary carbon centers. The β‐methylene C(sp3)−H bonds of various carbocyclic rings were also successfully alkynylated.
吡啶基配体可实现钯(II)催化的酰胺C(sp 3)-H键的β和γ炔基化反应。该炔基化反应与包含α-叔碳原子中心或α-季碳原子中心的底物兼容。各种碳环的β-亚甲基C(sp 3)-H键也被成功炔基化。