Phosphorus oxychloride → HCID 11530777, compound

HRID 1678378Notes

Reaction equation

HRID 1678378 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:13]([CH3:14])=[N:12][NH:11][C:10](=O)[C:9]=2[C:16]2[C:21]([F:22])=[CH:20][C:19]([F:23])=[CH:18][C:17]=2[F:24])=[CH:4][CH:3]=1.P(Cl)(Cl)([Cl:27])=O>>[Cl:27][C:10]1[N:11]=[N:12][C:13]([CH3:14])=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)[C:9]=1[C:16]1[C:21]([F:22])=[CH:20][C:19]([F:23])=[CH:18][C:17]=1[F:24]

Participants

3

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 57793906HCID 57793906, compound

Product 1

HCID 11530777HCID 11530777, compound

Conditions

Temperature
110 °C

Procedure

4.00 g of 5-(4-chlorophenyl)-6-methyl-4-(2,4,6-trifluorophenyl)-2H-pyridazin-3-one and 20 ml of phosphorus oxychloride were mixed and stirred at 110° C. for 1 hour. The reaction mixture was cooled down to room temperature and concentrated under reduced pressure. To the residue was added ethyl acetate and ice water, and was separated to two layer. The organic layer was washed sequentially with water and saturated brine, and dried over anhydrous sodium sulfate, then, concentrated under reduced pressure, to obtain 4.16 g of 3-chloro-5-(4-chlorophenyl)-6-methyl-4-(2,4,6-trifluorophenyl)pyridazine (hereinafter, referred to as compound (i) of the present invention).

Workup

  1. temperatureThe reaction mixture was cooled down to room temperature
  2. concentrationconcentrated under reduced pressure
  3. additionTo the residue was added ethyl acetate and ice water
  4. customwas separated to two layer
  5. washThe organic layer was washed sequentially with water and saturated brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-4d2428710860455ab4820a065a59ba15
Source dataset
uspto-grants-2011_08
Patent number
US08008512B2

Reaction notes

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