Sulfuric Acid → HCID 66835156, compound

HRID 2275280Notes

Reaction equation

HRID 2275280 reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH2:7][CH:8]([C:16]3[C:21]([O:22]CC4C=CC(OC)=CC=4)=[CH:20][CH:19]=[CH:18][N:17]=3)[C:9](=O)[C:10]2([CH3:14])[CH3:13])=[CH:5][CH:4]=1.S(=O)(=O)(O)O.[OH-].[Na+]>C(OCC)(=O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[CH2:7][C:8]3[C:16]4[N:17]=[CH:18][CH:19]=[CH:20][C:21]=4[O:22][C:9]=3[C:10]([CH3:14])([CH3:13])[C:11]=2[CH:12]=1

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 14798Sodium HydroxideHCID 66834426HCID 66834426, compound

Product 1

HCID 66835156HCID 66835156, compoundYield 50%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Conditions

Temperature
70 °C

Procedure

To the mixture of 7-methoxy-3-[3-(4-methoxy-benzyloxy)-pyridin-2-yl]-1,1-dimethyl-3,4-dihydro-1H-naphthalen-2-one (Compound GT15-2, 21 mg) and ethyl acetate (0.8 ml), sulfuric acid (0.2 ml) was added. The mixture was stirred and heated at 70° C. for 5 hrs. After cooling, the reaction mixture was neutralized with 2 N aqueous solution of sodium hydroxide. The mixture was diluted with ethyl acetate. The organic layer was washed with saturated aqueous solution of sodium bicarbonate and saturated brine, and then concentrated under reduced pressure. The resulting residues were purified by silica gel column (ethyl acetate/hexane) to obtain the title compound (7 mg, 50%).

Workup

  1. additionwas added
  2. temperatureAfter cooling
  3. washThe organic layer was washed with saturated aqueous solution of sodium bicarbonate and saturated brine
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residues were purified by silica gel column (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-2fc483770b8646cd958cb0d6fc542670
Source dataset
uspto-grants-2015_09
Patent number
US09126931B2

Reaction notes

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