Acetic Acid → 1-acetoxy-1-[(1-hydroxy)indan-5-yl]-2-[2-(N,N-dimethylamino)ethoxy]ethane

HRID 1198266Notes

Reaction equation

[C:1]([O:4][CH:5]([C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][CH:21]=1)[CH:18]([O:22]C1CCCCO1)[CH2:17][CH2:16]2)[CH2:6][O:7][CH2:8][CH2:9][N:10]([CH3:12])[CH3:11])(=[O:3])[CH3:2].C(O)(=O)C.O1CCCC1.C(=O)([O-])[O-].[K+].[K+]>C(OCC)C.O>[C:1]([O:4][CH:5]([C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][CH:21]=1)[CH:18]([OH:22])[CH2:17][CH2:16]2)[CH2:6][O:7][CH2:8][CH2:9][N:10]([CH3:12])[CH3:11])(=[O:3])[CH3:2]

Participants

Conditions

Temperature: 70 °C

Procedure

1.8 g of 1-acetoxy-2-[2-(N,N-dimethylamino)ethoxy]-1-[1-(tetrahydropyran-2-yloxy)indan-5-yl]ethane was added to 30 ml of a 4:2:1 mixed solution of acetic acid, tetrahydrofuran and water. The resulting mixture was stirred at 70° C. for 2 hours. The reaction mixture was cooled and added to a mixture of 100 ml of water and 100 ml of diethyl ether. The resulting mixture was adjusted to pH 8.5 with potassium carbonate. The organic layer was separated and dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure. The residue thus obtained was purified by column chromatography (eluant: chloroform/ethanol=10/1) to obtain 1.0 g of oily 1-acetoxy-1-[(1-hydroxy)indan-5-yl]-2-[2-(N,N-dimethylamino)ethoxy]ethane (compound No. 296).

Workup

temperatureThe reaction mixture was cooled
customThe organic layer was separated
dry with materialdried over anhydrous magnesium sulfate
customThe solvent was removed by distillation under reduced pressure
customThe residue thus obtained
customwas purified by column chromatography (eluant: chloroform/ethanol=10/1)

Sources & evidence

ORD record: ord-9dd8d6a11c244b0bbbb140a8ee6fe388
Source dataset: uspto-grants-1994_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05280032

Reaction notes

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