Sodium Iodide → 1-oxo-3-phenyl-6-(3-phenylpropoxy)-1H-indene-2-carboxylic acid ethyl ester

HRID 17876

Reaction equation

[CH2:1]([O:3][C:4]([C:6]1[C:7](=[O:22])[C:8]2[C:13]([C:14]=1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[CH:12][CH:11]=[C:10]([OH:21])[CH:9]=2)=[O:5])[CH3:2].C(=O)([O-])[O-].[K+].[K+].[I-].[Na+].Br[CH2:32][CH2:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>CN(C)C=O>[CH2:1]([O:3][C:4]([C:6]1[C:7](=[O:22])[C:8]2[C:13]([C:14]=1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[CH:12][CH:11]=[C:10]([O:21][CH2:32][CH2:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[CH:9]=2)=[O:5])[CH3:2]

Participants

Conditions

Temperature: 60 °C

Procedure

6-Hydroxy-1-oxo-3-phenyl-1H-indene-2-carboxylate ethyl ester (2 g, 6.80 mmol), potassium carbonate (1.41 g, 10.194 mmol), and sodium iodide (200 mg, 1.359 mmol) were dissolved in dimethylformamide (100 ml). 1-Bromo-3-phenylpropane (2.01 ml, 13.59 mmol) was added thereto at room temperature, was stirred for 12 hours at 60° C., and washed with saturated ammonium chloride. The organic layer obtained by extracting the reaction mixture with ethyl acetate was dried over anhydrous magnesium sulfate, concentrated, and the residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:4) to obtain the title compound (yield 85%) as a dark red solid.

Workup

washwashed with saturated ammonium chloride
customThe organic layer obtained
extractionby extracting the reaction mixture with ethyl acetate
dry with materialwas dried over anhydrous magnesium sulfate
concentrationconcentrated
customthe residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:4)

Sources & evidence

ORD record: ord-9f1d80b364074f929dd880780932bf51
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07741323B2

Linked notes

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