Potassium Carbonate → HCID 71279467, compound

HRID 2171127Notes

Reaction equation

HRID 2171127 reaction equation
[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:18]=[CH:17][CH:16]=[C:15]3[C:11]=2[CH2:12][CH2:13][C:14]3=[O:19])=[C:6]([OH:20])[C:5]=1[O:21][CH3:22])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:30][C:31]([CH3:35])([CH3:34])[CH2:32][OH:33]>C(#N)C>[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:18]=[CH:17][CH:16]=[C:15]3[C:11]=2[CH2:12][CH2:13][C:14]3=[O:19])=[C:6]([O:20][CH2:30][C:31]([CH3:35])([CH3:34])[CH2:32][OH:33])[C:5]=1[O:21][CH3:22])[CH3:2]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 1425013-Bromo-2,2-dimethyl-1-propanolHCID 70170377HCID 70170377, compound

Product 1

HCID 71279467HCID 71279467, compoundYield 19.4%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
80 °C

Procedure

To a stirring solution of 4-(4-ethoxy-2-hydroxy-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-one (80 mg, 0.268 mmol) in acetonitrile (7 mL) was added potassium carbonate (110 mg, 0.80 mmol) and 3-bromo-2,2-dimethylpropan-1-ol (133 mg, 0.80 mmol) and the resultant reaction mixture was heated to 80° C. for 16 h. The reaction mixture was cooled to RT, filtered through celite and the filtrate was concentrated under reduced pressure. Purification of the residue by flash column chromatography (silica gel, 0-25% ethyl acetate in pet ether) afforded title compound as a solid (20 mg, 19%).

Workup

  1. customthe resultant reaction mixture
  2. temperatureThe reaction mixture was cooled to RT
  3. filtrationfiltered through celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customPurification of the residue by flash column chromatography (silica gel, 0-25% ethyl acetate in pet ether)

Sources & evidence

ORD record
ord-181fe0f9504649a5b1bd18ebdcb0d1aa
Source dataset
uspto-grants-2015_06
Patent number
US09051290B2

Reaction notes

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