Potassium Carbonate → HCID 54577817, compound

HRID 2171128Notes

Reaction equation

HRID 2171128 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]1([CH3:35])[CH2:34][O:33][CH2:32]1>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]2([CH3:35])[CH2:34][O:33][CH2:32]2)[C:5]=1[O:21][CH3:22])[CH3:2]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 144860Oxetane, 3-(bromomethyl)-3-methyl-HCID 70170377HCID 70170377, compound

Product 1

HCID 54577817HCID 54577817, compoundYield 19.5%

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 (111 mg, 0.80 mmol) and 3-(bromomethyl)-3-methyloxetane (132 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-52813a8cf05c4a799aa84b6a2595b5d6
Source dataset
uspto-grants-2015_06
Patent number
US09051290B2

Reaction notes

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