“…88°C]; 1 H NMR (400 MHz, CDCl 3 ): δ 7.93 (d, J = 8.8 Hz, 2H), 7.66 (dd, J = 8.4, 2.4 Hz, 1H), 7.54 (dd, J = 8.4, 2.4 Hz, 1H), 7.40–7.28 (m, 2H), 6.94 (d, J = 8.8 Hz, 2H); 13 C NMR (100 MHz, CDCl 3 ): δ 158.9, 148.8, 147.4, 134.7, 131.1, 130.6, 127.3, 125.6, 117.6, 115.9; Elemental analysis calcd (%) for C 12 H 9 ClN 2 O: C, 61.95; H, 3.90; N, 12.04; found: C 61.82, H 3.82, N 11.93. - ( E )-4-((4-Bromophenyl)diazenyl)phenol, 3k: ( Chen et al., 2021 ) pale orange solid, 89% m.p. 153–155°C [Lit.
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