1H nuclear magnetic resonance spectroscopy (1H NMR) ()

dataset for 1H nuclear magnetic resonance spectroscopy (1H NMR) 1H NMR (500 MHz, Chloroform-d [7.26 ppm], ppm) δ = 8.54 (s, 1H, L), 7.71 (d, J = 8.0 Hz, 1H, L), 7.53–7.41 (m, 2H, DPEphos), 7.37–7.27 (m, 3H, L+DPEphos), 7.23–6.98 (m, 22H, L+DPEphos), 6.94–6.89 (m, 2H, L+DPEphos), 6.86 (t, J = 7.5 Hz, 2H, L+DPEphos), 6.74–6.68 (m, 2H, DPEphos), 6.18 (d, J = 3.8 Hz, 1H, L). Impurities: 3% of impurities due to DCM (5.29 ppm), water (1.55 ppm) and diethyl ether (3.48 and 1.21 ppm). The yield was adjusted accordingly.