Water → HCID 66924870, compound

HRID 554280Notes

Reaction equation

HRID 554280 reaction equation
Br[C:2]1[N:6]([S:7]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([CH3:16])[CH:11]=2)(=[O:9])=[O:8])[CH:5]=[C:4]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:3]=1[CH3:22].[C:23]1(B(O)O)[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(=O)([O-])[O-].[Na+].[Na+].O>COCCOC.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>[CH3:22][C:3]1[C:4]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:5][N:6]([S:7]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([CH3:16])[CH:11]=2)(=[O:9])=[O:8])[C:2]=1[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 66924936HCID 66924936, compound

Product 1

HCID 66924870HCID 66924870, compoundYield 96.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
70 °C

Procedure

Under an argon atmosphere, a suspension of ethyl 5-bromo-4-methyl-1-[(3-methylphenyl)sulfonyl]-1H-pyrrole-3-carboxylate (2.80 g), phenylboronic acid (1.84 g), tetrakis(triphenylphosphine)palladium (0.84 g), sodium carbonate (2.31 g) in 1,2-dimethoxyethane (12 mL)-water (12 mL) was stirred at 70° C. for 12 hr. After cooling, the reaction mixture was filtered through celite, and celite was washed with ethyl acetate. The organic layer was separated from the filtrate, washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→7:3) to give the title compound as a colorless oil (yield 2.67 g, 96%).

Workup

  1. temperatureAfter cooling
  2. filtrationthe reaction mixture was filtered through celite, and celite
  3. washwas washed with ethyl acetate
  4. customThe organic layer was separated from the filtrate
  5. washwashed with water and saturated brine
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→7:3)

Sources & evidence

ORD record
ord-a66816ad1fd34947a6fbb2f16ab607b5
Source dataset
uspto-grants-2011_11
Patent number
US08048909B2

Reaction notes

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