Sodium Carbonate → HCID 57824523, compound

HRID 708937Notes

Reaction equation

HRID 708937 reaction equation
Br[C:2]1[CH:6]=[CH:5][N:4]([C:7]2[CH:12]=[CH:11][C:10]([O:13][C:14]([F:17])([F:16])[F:15])=[CH:9][CH:8]=2)[CH:3]=1.[CH:18]([C:20]1[CH:25]=[CH:24][C:23](B(O)O)=[CH:22][CH:21]=1)=[O:19].C([O-])([O-])=O.[Na+].[Na+].O1CCOCC1>CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:15][C:14]([F:17])([F:16])[O:13][C:10]1[CH:11]=[CH:12][C:7]([N:4]2[CH:5]=[CH:6][C:2]([C:23]3[CH:24]=[CH:25][C:20]([CH:18]=[O:19])=[CH:21][CH:22]=3)=[CH:3]2)=[CH:8][CH:9]=1

Participants

7

Reactant 4

HCID 10340Sodium CarbonateHCID 312751,4-DioxaneHCID 5910734-Formylphenylboronic AcidHCID 66956509HCID 66956509, compound

Product 1

HCID 57824523HCID 57824523, compoundYield 21%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
150 °C

Procedure

A suspension of crude 3-bromo-1-(4-trifluoromethoxyphenyl)-1H-pyrrole (356 mg, 1.26 mmol, 1.00 eq), 4-formylphenylboronic acid (283 mg, 1.89 mmol, 1.50 eq), bis(triphenylphosphine)palladium(II) dichloride (27 mg, 0.04 mmol, 0.03 eq), 2M Na2CO3 (aq) (1.26 mL, 2.52 mmol, 2.0 eq), and 1,4-dioxane (5 mL) were heated at 150° C. in a microwave reaction vessel for 45 min. The cooled solution was then diluted with EtOAc (20 mL), filtered over Celite®, concentrated to dryness, and purified via chromatography (2:2:1, hexane:EtOAc:acetone) to afford the desired intermediate (79 mg, 21%).

Workup

  1. filtrationfiltered over Celite®
  2. concentrationconcentrated to dryness
  3. custompurified via chromatography (2:2:1, hexane:EtOAc:acetone)

Sources & evidence

ORD record
ord-330e7972b87b4d8c887cad14fd6c6f19
Source dataset
uspto-grants-2015_11
Patent number
US09179681B2

Reaction notes

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