Water → HCID 22123630, compound

HRID 1859303Notes

Reaction equation

HRID 1859303 reaction equation
Cl[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2([OH:38])[C:19]3[CH:20]=[CH:21][C:22]([O:24][CH2:25][O:26][CH3:27])=[CH:23][C:18]=3[O:17][CH2:16][CH:15]2[C:28]2[CH:33]=[CH:32][C:31]([O:34][CH2:35][O:36][CH3:37])=[CH:30][CH:29]=2)=[CH:10][CH:9]=1.[I-:39].[Na+].O>C(C(C)=O)C>[OH:38][C:14]1([C:11]2[CH:12]=[CH:13][C:8]([O:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][I:39])=[CH:9][CH:10]=2)[C:19]2[CH:20]=[CH:21][C:22]([O:24][CH2:25][O:26][CH3:27])=[CH:23][C:18]=2[O:17][CH2:16][CH:15]1[C:28]1[CH:33]=[CH:32][C:31]([O:34][CH2:35][O:36][CH3:37])=[CH:30][CH:29]=1

Participants

5

Reactant 3

HCID 962WaterHCID 5238Sodium IodideHCID 22123596HCID 22123596, compound

Product 1

HCID 22123630HCID 22123630, compoundYield 75%

Reagents, catalysts & solvents 1

HCID 6569Methyl Ethyl KetoneSolvent

Procedure

4-[4-(5-Chloropentyloxy)phenyl]-4-hydroxy-7-methoxymethyloxy-3-[4-(methoxymethyloxy)phenyl]-2,3-dihydro-4H-benzopyran (167 mg, 0.3 mmol) and sodium iodide (139 mg, 0.9 mmol) were dissolved in methyl ethyl ketone (5 ml) and then refluxed for 12 hours. The reaction solution was cooled to room temperature and, after adding water, extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, filtered and then concentrated under reduced pressure to remove the organic solvent. The concentrate was subjected to column chromatography (n-hexane:ethyl acetate=4:1) to obtain 142 mg (yield: 75%) of the title compound as a colorless oil.

Workup

  1. temperaturerefluxed for 12 hours
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto remove the organic solvent

Sources & evidence

ORD record
ord-6dd27313323f43639eeb222241da25fa
Source dataset
uspto-grants-2000_11
Patent number
US06153768

Reaction notes

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