Reaktion #57283

Reaktionsgleichung

ICl

4-[1-methyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl]-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine

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title product

Ausbeute 53.0%

2-iodo-4-[1-methyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl]-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

Ausbeute 53.0%

Lösungsmittel

acetonitrile

acetonitrile

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenThe reaction was concentrated to approx. ⅓ total volume
2. 2
   workup.ADDITIONdiluted with EtOAc (500 ml)
3. 3
   WaschenThe solution was washed with saturated NaHCO3(aq) (100 ml), saturated Na2S2O3(aq) (100 ml), brine (100 ml)
4. 4
   Trocknendried over MgSO4
5. 5
   FiltrationFiltration and concentration in vacuo
6. 6
   Sonstigeyielded a tan solid which
7. 7
   Sonstigewas triturated with hot acetonitrile/Et2O

Vorschrift

To a solution of ICl (1M in CH2Cl2, 43.3 mmol) in acetonitrile (250 ml) at −10° C. was added a solution of 4-[1-methyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl]-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine (8.67 mmol) in acetonitrile (46 ml) followed by stirring at −10° C. for 5 minutes. The reaction was concentrated to approx. ⅓ total volume and then diluted with EtOAc (500 ml). The solution was washed with saturated NaHCO3(aq) (100 ml), saturated Na2S2O3(aq) (100 ml), brine (100 ml), and dried over MgSO4. Filtration and concentration in vacuo yielded a tan solid which was triturated with hot acetonitrile/Et2O, providing the title product as a light tan solid (53%). ESMS [M+H]+: 586.0.

Quelle