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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(7):1899-1902
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. 相似文献