Synthesis of Cycloalkyl Substituted 7-Azaindoles via Photoredox Nickel Dual Catalytic Cross-Coupling in Batch and Continuous Flow
- Natalie Palaychuk, Travis J. DeLano, Michael J. Boyd, Jeremy Green, and Upul K. Bandarage
- Vertex Pharmaceuticals Incorporated, 50 Northern Avenue, Boston, Massachusetts 02210, United StatesRead the publication that featured this abstract
An efficient photoredox/Ni dual catalytic Csp2–Csp3 cross-coupling protocol in a continuous-flow regime to synthesize a variety of regioisomeric cycloalkyl substituted 7-azaindoles has been developed. These transformations proceed efficiently under mild conditions (blue LED light irradiation at 30 °C over 40 min residence time in mixed solvent systems). Reactions are easy to perform and afford most of the desired 2-, 3-, 4-, 5-, and 6-cycloalkyl substituted 7-azaindoles in moderate-to-good yield.
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