1H-Pyrrolo[2,3-b]pyridine, 5-broMo-2,3-diMethyl- synthesis
- Product Name:1H-Pyrrolo[2,3-b]pyridine, 5-broMo-2,3-diMethyl-
- CAS Number:145934-65-2
- Molecular formula:C9H9BrN2
- Molecular Weight:225.09
![1H-Pyrrolo[2,3-b]pyridine, 5-broMo-2,3-diMethyl-1-(phenylsulfonyl)-](/CAS/GIF/1111637-98-9.gif)
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Yield:145934-65-2 72.4%
Reaction Conditions:
with methanol;sodium hydroxide;water in tetrahydrofuran at 20;Heating / reflux;
Steps:
B-6
Preparation of 5-bromo-2,3-dimethyl-1H-pyrrolo[2,3-b]pyridine (B-6-4)B-6-3 β-6-4To a suspension of 5-bromo-2,3-dimethyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (B-6-3) (0.9 g, 2.5 mmol) in THF (30 mL) and MeOH (30 mL) was added aq. NaOH (20%, 19 mL) at room temperature. The mixture was heated to reflux overnight. TLC (Petroleum ether: EtOAc = 5:1 ) showed the reaction was complete. After the solvent was removed under reduced pressure, water (20 mL) and CH2CI2 (20 mL)
References:
WO2009/16460,2009,A2 Location in patent:Page/Page column 70-71
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