“…1 H NMR major isomer (400 MHz, DMSO-d 6 ) δ = 3.22-3.29 (4H, m, NCH 2 ), 3.72-3.79 (4H, m, OCH 2 ), 3.85 (3H, s, NCH 3 ), 7.81-8.04 (4H, m, 4H Ar), 7.93 (1H, s, =CH) ppm;13 C NMR major isomer (100 MHz, DMSO-d 6 ) δ = 39.1 (NCH 3 ), 49.9 (NCH 2 ), 65.9 (OCH 2 ), 120.1, 121.6 (pyr-CH), 121.7 (CH), 123.9 (J C,F = 272.7 Hz, CF 3 ), 123.6 (CNO 2 ), 126.3 (J C,F = 3.9 Hz, CH), 126.8 (J C,F = 3.9 Hz, CH), 129.0 (CH), 130.2, 130.3 (CH), 130.8, 131.2 (J C,F = 32.1 Hz, CCF 3 ), 137.3, 137.7, 153.2, 156.2 (NCS), 164.9 (C=O) ppm; MS m/z (I rel , %): 654 [M + ] (35), 639 [M − CH 3 ] + (60), 619 [M − Cl] + (8), 145 [Ph-CF 3 ] + (50), 127 (100); HRMS (ESI + ) m/z calcd for C 22 H 16 N 6 O 6 Cl 3 SF 3 Na [M + Na] + : 676.9767; found: 676.9769. 1,1'-(3,4,4-Trichloro-2-nitrobuta-1,3-diene-1,1-diyl)bis(1H-benzotriazole) (24) was prepared according to the literature[28] in 76% yield.Synthesis of N-[1-(1H-Benzotriazol-1-yl)-3,4,4-trichloro-2-nitrobuta-1,3-dien-1-yl]-2-methoxyaniline (25a) (General method).To a suspension of azole 24 (0.437 g, 1.0 mmol) in MeOH (10 mL) at 0 • C, 2-methoxyaniline (0.129 g, 1.05 mmol) was slowly added. The mixture was allowed to reach r.t. and stirred for another 3 h. After evaporation of the solvent, HCl (10%, 10 mL) was added and the resulting sludge was stirred for 20 min.…”