Cu(II)-Mediated Ortho C–H Alkynylation of (Hetero)Arenes with Terminal Alkynes
摘要:
Cu(II)-promoted ortho alkynylation of arenes and heteroarenes with terminal alkynes has been developed to prepare aryl alkynes. A variety of arenes and terminal alkynes bearing different substituents are compatible with this reaction, thus providing an alternative disconnection to Sonogashira coupling.
A Cu(OAc)2-mediated C-Hamidation and amination of arenes and heteroarenes has been developed using a readily removable directing group. A wide range of sulfonamides, amides, and anilines function as amine donors in this reaction. Heterocycles present in both reactants are tolerated, making this a broadly applicable method for the synthesis of a family of inhibitors including 2-benzamidobenzoic acids
Cu‐Mediated Amination of (Hetero)Aryl C−H bonds with NH Azaheterocycles
作者:Jin‐Feng Yu、Jian‐Jun Li、Peng Wang、Jin‐Quan Yu
DOI:10.1002/anie.201910395
日期:2019.12.9
Direct synthesis of N-(hetero)arylated heteroarenes has been realized through Cu-mediated C-N coupling of NH azaheterocycles with aryl C-Hbonds under aerobic conditions. This method features a broad scope of both heterocyclic arenes (pyridine, quinoline, pyrazole, imidazole, furan, thiophene, benzofuran, and indole) and NH azaheterocycles (imidazole, pyrazole, indole, azindole, purine, indazole, benzimidazole