2,4-Dichlorophenyl isocyanate → 1-[3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-dichloro-phenyl)-urea

Beteiligte Stoffe

Reaktionsschritte

3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.031 g, 0.11 mmol) was treated with 2,4-dichlorophenyl isocyanate (0.021 g, 0.11 mmol, 1.0 equiv.) in CH2Cl2 (2 mL), in a similar manner as described in Example 1.2 to afford Compound 3 (0.036 g, 0.076 mmol, 69%) as a white solid. LCMS m/z (%)=469 (M+H79Br35Cl35Cl, 60), 471 (M+H79Br35Cl37Cl&81Br35Cl35Cl, 100), 473 (M+H81Br35Cl37Cl79Br37Cl37Cl, 54), 475 (M+H81Br37Cl37Cl, 4), 1H NMR (400 MHz, acetone-d6) δ: 8.81 (s, 1H), 8.36 (d, J=9.0 Hz, 1H), 7.91 (s, 1H), 7.69 (dd, J=2.7, 9.0 Hz, 1H), 7.50 (s, 1H), 7.48 (d, J=2.4 Hz, 1H), 7.45 (d, J=2.7 Hz, 1H), 7.34 (dd, J=2.4, 9.0 Hz, 1H), 7.15 (d, J=9.0 Hz, 1H), 3.83 (s, 3H), 3.69 (s, 3H).

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