Fig. 3: The scope of the organonitro compounds.
From: Site-specific Umpolung amidation of carboxylic acids via triplet synergistic catalysis

Standard conditions: 1a (0.2 mmol), R-NO2 2 (0.24 mmol), PC-I (1 mol%), P-A (30 mol%), FeI2 (15 mol%), K2HPO4 (0.5 equiv), PhSiH3 (1 mmol), MeCN (4 ml), blue LEDs, ambient temperature, 24-36 h. a 2.0 equivalent nitromethane was used.