Dimethylformamide → HCID 86613915, compound

HRID 1811396Notes

Reaction equation

HRID 1811396 reaction equation
[H-].[Na+].CN(C=O)C.[O:8]=[C:9]1[CH:18]=[C:17]([CH:19]=[O:20])[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[NH:10]1.[Cl:21][C:22]1[CH:29]=[CH:28][C:25]([CH2:26]Br)=[CH:24][CH:23]=1>C(OCC)(=O)C.O>[Cl:21][C:22]1[CH:29]=[CH:28][C:25]([CH2:26][N:10]2[C:11]3[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:17]([CH:19]=[O:20])=[CH:18][C:9]2=[O:8])=[CH:24][CH:23]=1

Participants

7

Reactant 4

HCID 6228DimethylformamideHCID 24758Sodium hydrideHCID 693291-(Bromomethyl)-4-chlorobenzeneHCID 2854772-oxo-1,2-dihydroquinoline-4-carbaldehyde

Product 1

HCID 86613915HCID 86613915, compoundYield 47%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

Sodium hydride (60% in oil) (1.3 g) was added at 0° C. to a DMF solution (50 ml) of 2-oxo-1,2-dihydroquinoline-4-carboxaldehyde (5.13 g), followed by stirring for 30 minutes. 4-chlorobenzylbromide (7.0 g) was added, and the resulting mixture was stirred at room temperature overnight. Water was added to the reaction mixture, extraction with ethyl acetate was performed, and the extract was dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:n-hexane=1:10→1:4). The purified product was recrystallized from a chloroform-diisopropyl ether-n-hexane mixed solvent to thereby obtain 4.13 g (yield: 47%) of 1-(4-chlorobenzyl)-2-oxo-1,2-dihydroquinoline-4-carboxaldehyde as a white powder.

Workup

  1. stirringthe resulting mixture was stirred at room temperature overnight
  2. dry with materialthe extract was dried over anhydrous sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (ethyl acetate:n-hexane=1:10→1:4)
  5. customThe purified product was recrystallized from a chloroform-diisopropyl ether-n-hexane mixed solvent

Sources & evidence

ORD record
ord-80692fda13f942a1903a7b61aabe859f
Source dataset
uspto-grants-2013_01
Patent number
US08362252B2

Reaction notes

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