Acetic Acid → HCID 136339637, compound

HRID 1786676Notes

Reaction equation

HRID 1786676 reaction equation
Br[C:2]1[CH:8]=[CH:7][CH:6]=[CH:5][C:3]=1[NH2:4].S([O-])([O-])(=O)=O.[Mg+2].[OH:15][C:16]1[C:21]([CH3:22])=[CH:20][C:19]([C:23]2[N:28]=[N:27][C:26]([O:29][CH3:30])=[C:25]([C:31](=O)[CH3:32])[CH:24]=2)=[CH:18][C:17]=1[CH3:34].C(O)(=O)C>CC(N(C)C)=O>[NH:4]1[C:3]2[C:2](=[CH:8][CH:7]=[CH:6][CH:5]=2)[CH:32]=[C:31]1[C:25]1[CH:24]=[C:23]([C:19]2[CH:20]=[C:21]([CH3:22])[C:16]([OH:15])=[C:17]([CH3:34])[CH:18]=2)[N:28]=[N:27][C:26]=1[O:29][CH3:30]

Participants

6

Conditions

Temperature
140 °C

Procedure

205 mg of 2-bromoaniline and 72 mg of anhydrous magnesium sulfate are suspended in 7 ml dimethylacetamide. 325 mg of 1-[6-(4-Hydroxy-3,5-dimethyl-phenyl)-3-methoxy-pyridazin-4-yl]-ethanone and 86.6 μl acetic acid are added and the reaction is degassed with argon. 330 mg of tripotassium phosphate and 61 mg of bis(tri-tert-butylphosphine) palladium (0) are added and the reaction is degassed with argon. The reaction is heated to 140° C. for 5 h. The solution is poured into water and extracted with ethyl acetate. The solvent is removed under reduced pressure. The product is purified by silica gel chromatography, eluting with a gradient of ethyl acetate in heptane. Yield 105 mg. LC-MS (ES+) 346 (M+H)+.

Workup

  1. customthe reaction is degassed with argon
  2. addition330 mg of tripotassium phosphate and 61 mg of bis(tri-tert-butylphosphine) palladium (0) are added
  3. customthe reaction is degassed with argon
  4. additionThe solution is poured into water
  5. extractionextracted with ethyl acetate
  6. customThe solvent is removed under reduced pressure
  7. customThe product is purified by silica gel chromatography
  8. washeluting with a gradient of ethyl acetate in heptane

Sources & evidence

ORD record
ord-752f5172a1dc4c88aa70e977aa30f488
Source dataset
uspto-grants-2009_03
Patent number
US07507734B2

Reaction notes

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