Potassium Iodide → Rac-6-chloro-3-(3-chloro-benzyl)-3-(3,5-dimethoxy-phenyl)-1,3-dihydro-indol-2-one

HRID 2102709Notes

Reaction equation

[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]([C:12]3[CH:17]=[C:16]([O:18][CH3:19])[CH:15]=[C:14]([O:20][CH3:21])[CH:13]=3)[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1.[Cl:22][C:23]1[CH:24]=[C:25]([CH:28]=[CH:29][CH:30]=1)[CH2:26]Br.[I-].[K+].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH2:26][C:25]3[CH:28]=[CH:29][CH:30]=[C:23]([Cl:22])[CH:24]=3)([C:12]3[CH:17]=[C:16]([O:18][CH3:19])[CH:15]=[C:14]([O:20][CH3:21])[CH:13]=3)[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of rac-6-chloro-3-(3,5-dimethoxy-phenyl)-1,3-dihydro-indol-2-one (0.1 g, 0.33 mmol) (from Example 40b supra), 3-chlorobenzyl bromide (0.080 g, 0.38 mmol) (Aldrich), potassium iodide (0.065 g, 0.38 mmol) and potassium carbonate (0.098 g, 0.71 mmol) in acetone (5 mL) was heated at 60° C. for 2 hours. After cooling, mixture was partitioned between ethyl acetate and water. The aqueous layer was extracted with ethyl acetate. The combined organic layer was washed with water and brine, dried (Na2SO4), filtered and concentrated. Residue was purified by chromatography to give rac-6-chloro-3-(3-chloro-benzyl)-3-(3,5-dimethoxy-phenyl)-1,3-dihydro-indol-2-one as a white solid. (Yield 0.1 g, 71.4%).

Workup

temperatureAfter cooling
custommixture was partitioned between ethyl acetate and water
extractionThe aqueous layer was extracted with ethyl acetate
washThe combined organic layer was washed with water and brine
dry with materialdried (Na2SO4)
filtrationfiltered
concentrationconcentrated
customResidue was purified by chromatography

Sources & evidence

ORD record: ord-e3150624a5c14f498b8b44a144521a49
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07576082B2

Reaction notes

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