2.3.7. 2-(4-(Bis(4-Bromophenyl)Amino)Benzylidene)-1*H*-Indene-1,3(2*H*)-Dione **PP17**

4-(bis(4-bromophenyl)amino)benzaldehyde (1.1 g, 2.55 mmol), mexp = 1.15 g, 2.06 mmol, 81% yield. 1H nmR (CDCl3) δ: 7.02–7.07 (m, 6*H*), 7.46 (d, 4*H*, J = 8.8 Hz), 7.76–7.78 (m, 3*H*), 7.96–7.98 (m, 2*H*), 8.42 (d, 2*H*, J = 8.9 Hz); 13C nmR (CDCl3) δ: 118.4, 120.0, 122.98, 123.01, 126.4, 126.9, 127.6, 133.0, 134.7, 135.0, 136.6, 140.1, 142.4, 144.8, 146.0, 151.5, 189.5, and 190.9; HRMS (ESI MS) m/z: theor: 556.9626 found: 556.9628 ([M]+. detected).
