Water → Methyl 7-(4-morpholinophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate

HRID 1978563Notes

Reaction equation

HRID 1978563 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[S:11](=[O:13])(=[O:12])[CH2:10][CH2:9][C:8]([C:14]([O:16][CH3:17])=[O:15])=[CH:7][C:6]=2[CH:18]=1.B([O-])([O-])O[C:21]1[CH:26]=[CH:25][C:24]([N:27]2[CH2:32][CH2:31][O:30][CH2:29][CH2:28]2)=[CH:23][CH:22]=1.C(=O)([O-])[O-].[K+].[K+].O>C1(C)C=CC=CC=1.C(O)C.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[O:30]1[CH2:31][CH2:32][N:27]([C:24]2[CH:25]=[CH:26][C:21]([C:2]3[CH:3]=[CH:4][C:5]4[S:11](=[O:13])(=[O:12])[CH2:10][CH2:9][C:8]([C:14]([O:16][CH3:17])=[O:15])=[CH:7][C:6]=4[CH:18]=3)=[CH:22][CH:23]=2)[CH2:28][CH2:29]1

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 21995732Methyl 7-bromo-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylateHCID 867561794-Morpholinophenyl borate

Product 1

HCID 21995678Methyl 7-(4-morpholinophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylateYield 70.7%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 86587398Ethanol toluene waterSolvent

Procedure

Under argon atmosphere, a mixture of methyl 7-bromo-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (0.7 g), 4-morpholinophenyl borate (481 mg) and potassium carbonate (0.59 g) in toluene/ethanol/water (20/2/2 ml) was stirred at room temperature for 1 hour. To the mixture was added tetrakistriphenylphosphinepalladium (0.12 g), and the mixture was refluxed for 20 hours and cooled. To the mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried with magnesium sulfate and concentrated under reduced pressure, and precipitated solid was recrystallized from ethyl acetate/hexane to give yellow crystals of methyl 7-(4-morpholinophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (617.6 mg).

Workup

  1. temperaturethe mixture was refluxed for 20 hours
  2. temperaturecooled
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried with magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customprecipitated solid
  8. customwas recrystallized from ethyl acetate/hexane

Sources & evidence

ORD record
ord-35f9e32fb68347808dd4fda52c4dcbe7
Source dataset
uspto-grants-2001_05
Patent number
US06235771B1

Reaction notes

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