Cooperative Lewis Acid/Cp*Co III Catalyzed C−H Bond Activation for the Synthesis of Isoquinolin‐3‐ones

Amidines for Versatile Cobalt(III)-Catalyzed Synthesis of Isoquinolines through C-H Functionalization with Diazo Compounds

A cobalt(III)-catalyzed C-H/N-H bond functionalization for the synthesis of 1-aminoisoquinolines from aryl amidines and diazo compounds has been developed. The reaction proceeds under mild reaction conditions, obviates the need for oxidants, produces only N2 and H2O as the byproducts, and features a broad substrate scope.

Synthesis of isoquinolines via Rh-catalyzed C–H activation/C–N cyclization with diazodiesters or diazoketoesters as a C2 source

Synthesis of isoquinolines based on efficient C–C and C–N bond formation through Rh(iii)-catalyzed C–H functionalization and subsequent intramolecular cyclization is reported. Diazodiesters serving as a C₂ source in the newly formed heterocycles are first demonstrated.

Rhodium/copper-cocatalyzed annulation of benzylamines with diazo compounds: access to fused isoquinolines

Benzylamines undergo C–H activation and aerobic coupling with diazo compounds, leading to the synthesis of fused isoquinolines. This occurs via a mild synergistic rhodium- and copper-catalyzed process.

Ir(iii)-catalyzed synthesis of isoquinolines from benzimidates and α-diazocarbonyl compounds

We report herein a tandem Ir(iii)-catalyzed C–H activation and annulation reactions for the synthesis of isoquinolines. This novel method affords an alternative strategy for the construction of diverse and useful isoquinoline derivatives.