Potassium Phosphate, Tribasic → 5-(4-(Trifluoromethyl)phenyl)pyridazin-3(2H)-one

HRID 2059875

反応式

HRID 2059875 の反応式
C1(P(C2CCCCC2)C2CCCCC2)CCCCC1.I[C:21]1[CH:26]=[N:25][NH:24][C:23](=[O:27])[CH:22]=1.[F:28][C:29]([F:40])([F:39])[C:30]1[CH:35]=[CH:34][C:33](B(O)O)=[CH:32][CH:31]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>C1(C)C=CC=CC=1.O.C(Cl)Cl.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:28][C:29]([F:40])([F:39])[C:30]1[CH:35]=[CH:34][C:33]([C:21]2[CH:26]=[N:25][NH:24][C:23](=[O:27])[CH:22]=2)=[CH:32][CH:31]=1

参加物

9

反応条件

温度
100 °C

実験手順

Tricyclohexyl phosphine (16.6 μL, 0.02 mmol) was added to a mixture of 5-iodopyridazin-3(2H)-one (35 mg, 0.16 mmol), 4-(trifluoromethyl)phenylboronic acid (30 mg, 0.16 mmol), potassium phosphate tribasic (117 mg, 0.55 mmol), and palladium (II) acetate (3.5 mg, 0.02 mmol) in Toluene (0.8 mL) and Water (0.3 mL). The mixture was stirred at 100° C. for 22 hours. The reaction was diluted with CH2Cl2, filtered and concentrated. The crude was purified using HPLC (Phen Luna Axia C18 5μ 10:90:0.1 to 90:10:0.1 MeOH—H2O-TFA) to afford the desired product 5-(4-(trifluoromethyl)phenyl)pyridazin-3(2H)-one 18A (14.8 mg, 0.06 mmol, 39.1% yield) as a white solid. LC/MS 282 (M+H)+, tR 0.77 min (method 5).

後処理

  1. filtrationfiltered
  2. concentrationconcentrated
  3. customThe crude was purified

出典と根拠

ORDレコード
ord-298cfe593174440d8b9f2ab3d35484b9
出典データセット
uspto-grants-2012_10
特許番号
US08278316B2

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