Disodium disulfite → 6-[[1-Phenyl-2-propanesulfinyl-1H-benzimidazol-6-yl]oxy]Hexanoic Acid Methyl Ester

HRID 1070847Notes

Reaction equation

[CH3:1][O:2][C:3](=[O:29])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:11]=[CH:12][C:13]2[N:17]=[C:16]([S:18][CH2:19][CH2:20][CH3:21])[N:15]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[C:14]=2[CH:28]=1.ClC1C=CC=C(C(OO)=[O:38])C=1.S(OS([O-])=O)([O-])=O.[Na+].[Na+]>ClCCl>[CH3:1][O:2][C:3](=[O:29])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:11]=[CH:12][C:13]2[N:17]=[C:16]([S:18]([CH2:19][CH2:20][CH3:21])=[O:38])[N:15]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[C:14]=2[CH:28]=1

Participants

Conditions

Temperature: 20 °C

Procedure

80 mg of 6-[[1-phenyl-2-propylmercapto-1H-benzimidazol-6-yl]oxy]hexanoic acid methyl ester was dissolved in 2 ml of dichloromethane, mixed with 56 mg of m-chloroperbenzoic acid (about 60%), and the mixture was stirred for 10 minutes at 20° C. It was mixed with sodium disulfite solution, extracted twice with dichloromethane, the combined organic phases were washed with saturated sodium bicarbonate solution, water and saturated sodium chloride solution, dried on sodium sulfate and concentrated by evaporation in a vacuum. The residue was purified by column chromatography on silica gel. 30 mg was obtained.

Workup

extractionextracted twice with dichloromethane
washthe combined organic phases were washed with saturated sodium bicarbonate solution, water and saturated sodium chloride solution
customdried on sodium sulfate
concentrationconcentrated by evaporation in a vacuum
customThe residue was purified by column chromatography on silica gel
custom30 mg was obtained

Sources & evidence

ORD record: ord-c366972d6a134d48912987c2f1b6fdd4
Source dataset: uspto-grants-2005_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06903126B2

Reaction notes

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