Fig. 4: Synthesis of the nitronyl nitroxide di-radical (NNDR).
From: Enhancing thermoelectric output in a molecular heat engine utilizing Yu-Shiba-Rusinov bound states
Reagents and conditions: (a) NBS, BPO, DCE, reflux, 16 h, 98%; (b) AgNO3, H2O, EtOH, reflux, 1 h, 55%; (c) Pd(PPh3)2Cl2, K2CO3, dioxane, MeOH, 80 °C, 15 h, 66%; (d) MeOH, reflux, 5 h, 75%; (e) NaIO4, CHCl3 (H2O), room temperature, 1 h, 51%.
