Water → 1H-Pyrrolo[2,3-b]pyridine, 2-(2-furanyl)-5-(methylthio)-1-(phenylsulfonyl)-

HRID 1432205

Reaction equation

[C:1]1([S:7]([NH:10][C:11]2[C:16](I)=[CH:15][C:14]([S:18][CH3:19])=[CH:13][N:12]=2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:20]([C:22]1[O:23][CH:24]=[CH:25][CH:26]=1)#[CH:21].C(N(CC)CC)C.O>O1CCOCC1.[Pd](Cl)Cl.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Cu]I>[O:23]1[CH:24]=[CH:25][CH:26]=[C:22]1[C:20]1[N:10]([S:7]([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)(=[O:9])=[O:8])[C:11]2=[N:12][CH:13]=[C:14]([S:18][CH3:19])[CH:15]=[C:16]2[CH:21]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 2-benzenesulfonylamino-3-iodo-5-methylthiopyridine (1.60 g) in dioxane (40 ml), 2-ethynylfuran (725 mg), bis(triphenylphosphine) palladium chloride (138 mg), copper(I) iodide (75 mg) and triethylamine (598 mg) were added successively and the mixture was stirred in a sealed tube at 60° C. for 1 hour. After cooling, the reaction solution was poured into water, extracted with dichloromethane, dried over, anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was separated using silica gel column chromatography (hexane:ethyl acetate=4:1) to obtain 1.24 g (85%) of the desired product as a brown oil.

Workup

temperatureAfter cooling
extractionextracted with dichloromethane
dry with materialdried over, anhydrous magnesium sulfate
filtrationfiltered
concentrationconcentrated under reduced pressure
customThe resulting residue was separated

Sources & evidence

ORD record: ord-a12745ff9f1c4a2f8d983518ef770b87
Source dataset: uspto-grants-2009_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07612070B2

Linked notes

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