Cu-Catalyzed Denitrogenative Ring-Opening of 3-Aminoindazoles for the Synthesis of Aromatic Nitrile-Containing (Hetero)Arenes
作者:Yao Zhou、Shuilin Deng、Shaoyu Mai、Qiuling Song
DOI:10.1021/acs.orglett.8b02629
日期:2018.10.5
example for denitrogenative ring-opening of 3-aminoindazoles. This novel reactivity of 3-aminoindazoles enables the production of diverse aromatic nitrile-containing (hetero)arenes via C–H arylation of (hetero)arenes with wide subsrate scope under mild conditions.
Couplings: N‐Cyanobenzimidazole has been used in the synthesis of aryl‐ and heteroarylnitriles from the corresponding Grignard reagents (see scheme). This electrophiliccyanation is further extended to the synthesis of 2‐cyano‐1,1′‐biaryls through a domino Grignard‐coupling/cyanation strategy.