Site-Selective Electrochemical Synthesis of Nitrogen-Enriched Bis-Pyrazole Derivatives: A Sustainable Approach for N-N versus N=N bond Formation

Two bis-pyrazole derivatives with azo (N=N) and dinitrogen (N-N) linkages were synthesized through an electrochemical homo-coupling process, starting from 3,5-diamino-4-cyanopyrazole. Through precise manipulation of electrochemical parameters and strategic electrolyte selection,...