Aromatic 1,4,2,3‐Diazadiborole Featuring an Unsymmetrical B=B Entity: A Versatile Synthon for Unusual Boron Heterocycles. - Mu, Yu; Dai, Yuyang; Ruiz, David A.; Liu, Liu Leo; Xu, Li‐Ping; Tung, Chen‐Ho; Kong, Lingbing (Angewandte Chemie International Edition, 2024)