Potassium Hydroxide → 1-Benzenesulfonylamino-2-iodo-4-methanesulfonylbenzene

HRID 1432225Notes

Reaction equation

[C:1]1([S:7]([N:10](S(C2C=CC=CC=2)(=O)=O)[C:11]2[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:19])=[O:18])=[CH:13][C:12]=2[I:21])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH-].[K+]>O1CCOCC1>[C:1]1([S:7]([NH:10][C:11]2[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:18])=[O:19])=[CH:13][C:12]=2[I:21])(=[O:8])=[O:9])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To a suspension of the compound obtained in Example 8 (4) (4.90 g) in 1,4-dioxane (85 ml), a 1N aqueous potassium hydroxide solution (21.2 ml) was added and the mixture was stirred at 100° C. for 1 hour. After completion of the reaction, the reaction solution was concentrated under reduced pressure, poured into a saturated aqueous NaCl solution, extracted with tetrahydrofuran, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resulting residue was separated using silica gel column chromatography (chloroform methanol=10:1) to obtain 3.47 g of the desired product in a colorless amorphous form.

Workup

customAfter completion of the reaction
concentrationthe reaction solution was concentrated under reduced pressure
additionpoured into a saturated aqueous NaCl solution
extractionextracted with tetrahydrofuran
dry with materialdried over anhydrous sodium sulfate
filtrationfiltered
concentrationconcentrated under reduced pressure
customThe resulting residue was separated

Sources & evidence

ORD record: ord-c2beb6701acc43f49c5f05ef90ada253
Source dataset: uspto-grants-2009_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07612070B2

Reaction notes

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