Ammonia → 2-(3-Chloro-4-fluorophenyl)-4-(4-chlorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone

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Reaktionsschritte

The title compound was prepared according to Example 93, starting with 4-(4-chlorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone (described in Example 99) in place of 4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone and substituting 1-bromo-3-chloro-4-fluorobenzene in place of 4-bromothioanisole (yield: 330 mg, 58.8%). mp 205° C. 1H NMR (300 MHz, CDCl3) δ 3.10 (s, 3H), 7.17 (d, J=9 Hz, 2H), 7.23-7.31 (m, 1H), 7.28 (d, J=9 Hz, 2H), 7.41 (d, J=9 Hz, 2H), 7.65 (ddd, J=9 Hz, 3 Hz, 1.5 Hz, 1H), 7.85 (dd, J=9 Hz, 3 Hz, 1H), 7.93 (d, J=9 Hz, 2H), 8.01 (s, 1H). MS (DCI/NH3) m/z 489 (M+H)+, 508 (M+NH4)+. Anal. calc. for C23H15Cl2N2O3S: C,56.44; H, 3.17; N, 5.73. Found: C, 56.37; H, 3.19; N, 5.64.

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