Cesium carbonate → HCID 67468303, compound

HRID 2171110Notes

Reaction equation

HRID 2171110 reaction equation
Br[C:2]1[C:7]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([S:16]([NH2:19])(=[O:18])=[O:17])=[CH:12][CH:11]=2)=[C:6]([O:20][CH3:21])[C:5]([O:22][CH:23]([F:25])[F:24])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C(C)(C)OB([C:40]2[CH:41]=[C:42]3[C:46](=[CH:47][CH:48]=2)[C:45](=[O:49])[NH:44][CH2:43]3)O1>CN(C)C=O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[F:24][CH:23]([F:25])[O:22][C:5]1[C:6]([O:20][CH3:21])=[C:7]([C:2]([C:40]2[CH:41]=[C:42]3[C:46](=[CH:47][CH:48]=2)[C:45](=[O:49])[NH:44][CH2:43]3)=[CH:3][CH:4]=1)[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([S:16]([NH2:19])(=[O:18])=[O:17])=[CH:12][CH:11]=1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 219557955-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-oneHCID 67465490HCID 67465490, compound

Product 1

HCID 67468303HCID 67468303, compoundYield 18%

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
85 °C

Procedure

To a stirring solution of 4-((6-bromo-3-(difluoromethoxy)-2-methoxyphenoxy)methyl)benzenesulfonamide (200 mg, 0.456 mmol) in dimethylformamide (10 mL) was purged with argon for 1 h. To this cesium carbonate (444 mg, 1.368 mmol), tetrakis(triphenylphosphine) palladium(0) (26 mg, 0.022 mmol) and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (141 mg, 0.547 mmol) were added and the resultant reaction mixture was heated to 80-90° C. for 3 h. The reaction mixture was cooled to RT, filtered and the filtrate was diluted with water and extracted with ethyl acetate (3×). The combined ethyl acetate layer was washed with brine and dried over anhydrous sodium sulphate and concentrated under reduced pressure. Purification of the residue by column chromatography (silica gel, 0-20% ethyl acetate in pet ether) afforded the title compound as a solid (40 mg, 18%).

Workup

  1. customthe resultant reaction mixture
  2. temperatureThe reaction mixture was cooled to RT
  3. filtrationfiltered
  4. additionthe filtrate was diluted with water
  5. extractionextracted with ethyl acetate (3×)
  6. washThe combined ethyl acetate layer was washed with brine
  7. dry with materialdried over anhydrous sodium sulphate
  8. concentrationconcentrated under reduced pressure
  9. customPurification of the residue by column chromatography (silica gel, 0-20% ethyl acetate in pet ether)

Sources & evidence

ORD record
ord-88d98cbd2d424f8ea390eacbaaa41569
Source dataset
uspto-grants-2015_06
Patent number
US09051290B2

Reaction notes

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