Potassium Carbonate → HCID 23092660, compound

HRID 2235350Notes

Reaction equation

HRID 2235350 reaction equation
[CH3:1][C:2]1([CH3:19])[C:10]2[C:5](=[CH:6][C:7]([N+:15]([O-:17])=[O:16])=[C:8]([NH:11]C(=O)C)[CH:9]=2)[NH:4][C:3]1=[O:18].[CH3:20][O:21][C:22]1[CH:31]=[CH:30][CH:29]=[CH:28][C:23]=1[C:24](=[O:27])[CH2:25]Br.C([O-])([O-])=O.[K+].[K+]>>[NH2:11][C:8]1[CH:9]=[C:10]2[C:5](=[CH:6][C:7]=1[N+:15]([O-:17])=[O:16])[N:4]([CH2:25][C:24]([C:23]1[CH:28]=[CH:29][CH:30]=[CH:31][C:22]=1[O:21][CH3:20])=[O:27])[C:3](=[O:18])[C:2]2([CH3:1])[CH3:19]

Participants

4

Reactant 3

HCID 11430Potassium CarbonateHCID 123440Bromomethyl 2-methoxyphenyl ketoneHCID 23092658N-(3,3-Dimethyl-6-nitro-2-oxo-2,3-dihydro-1H-indol-5-yl)acetamide

Product 1

HCID 23092660HCID 23092660, compoundYield 605.8%

Procedure

Analogously to general procedure (I) N-(3,3-dimethyl-6-nitro-2-oxo-2,3-dihydro-1H-indol-5-yl)-acetamide (1 g) is alkylated using 2-methoxyphenacyl bromide (9.6 g; 41.9 mmol) and K2CO3 (14.2 g; 102.7 mmol) at RT for 3 days. After filtration and evaporation of the solvent the crude material is de-acetylated under reflux in 2-propanol (150 ml) and hydrochloric acid (6 N; 100 ml). Pure 5-amino-1-[2-(2-methoxy-phenyl)-2-oxo-ethyl]-3,3-dimethyl-6-nitro-1,3-dihydro-indol-2-one (8.5 g) is obtained by aqueous work-up and re-crystallization.

Workup

  1. customat RT
  2. customfor 3 days
  3. filtrationAfter filtration and evaporation of the solvent the crude material
  4. temperatureunder reflux in 2-propanol (150 ml)

Sources & evidence

ORD record
ord-9ae04342d7f14f088ba6a0c44e305a53
Source dataset
uspto-grants-2010_05
Patent number
US07714010B2

Reaction notes

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