Fig. 1: Synthesis of N-substituted phenanthridinones 2 from 2-bromo-benzamides 1—a formal redox-neutral dimerization and deamidation process.
From: Deciphering complexity in Pd–catalyzed cross-couplings

Key: The blue color in structures 1 and 2 shows the origin of the benzo-moiety. The colored disconnection bonds show different bond sites for activation by the catalyst system. Other generic colors are used to guide the eye to multiple products being formed and HTE screening positions in batch mode.