4-Fluorobenzaldehyde → Ethyl 3-(4-fluorophenyl)-2-(4-(1-methylpyrrolidin-2-yl)phenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate

HRID 908029Notes

Reaction equation

HRID 908029 reaction equation
[CH3:1][N:2]1[CH2:6][CH2:5][CH2:4][CH:3]1[C:7]1[CH:24]=[CH:23][C:10](/[CH:11]=[N:12]/[C:13]2[CH:21]=[CH:20][CH:19]=[C:18]3[C:14]=2[CH2:15][O:16][C:17]3=[O:22])=[CH:9][CH:8]=1.[F:25][C:26]1[CH:31]=[CH:30][C:29]([CH:32]=O)=[CH:28][CH:27]=1.[CH3:34][CH2:35][O-:36].[Na+]>C(OCC)(=O)CC.CCO>[F:25][C:26]1[CH:31]=[CH:30][C:29]([CH:32]2[C:35](=[O:36])[C:34]3[C:18]([C:17]([O:16][CH2:15][CH3:14])=[O:22])=[CH:19][CH:20]=[CH:21][C:13]=3[NH:12][CH:11]2[C:10]2[CH:23]=[CH:24][C:7]([CH:3]3[CH2:4][CH2:5][CH2:6][N:2]3[CH3:1])=[CH:8][CH:9]=2)=[CH:28][CH:27]=1

Participants

6

Reactant 3

HCID 680234-FluorobenzaldehydeHCID 2723922Sodium ethoxideHCID 178480145HCID 178480145, compound

Product 1

HCID 67261804Ethyl 3-(4-fluorophenyl)-2-(4-(1-methylpyrrolidin-2-yl)phenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylateYield 42.3%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 7749Ethyl PropionateSolvent

Procedure

A mixture of (E)-4-(4-(1-methylpyrrolidin-2-yl)benzylideneamino)isobenzofuran-1(3H)-one (0.32 g, 1 mmol), 4-fluorobenzenaldehyde (0.248 g, 2 mmol) was dissolved in dry ethyl propionate (5 mL), EtONa (0.136 g, 2 mmol) in EtOH (5 mL) was added to this solution and the mixture was stirred at room temperature until the starting material was disappeared as monitored by TLC. The reaction was quenched with 0.5 mL of water, the resulting mixture was concentrated in vacuo, and the residue was purified by column chromatography (MeOH:DCM=1:20) to give the title compound (200 mg, yield 42%) as a pale yellow solid. LC-MS (ESI) m/z: 472(M+1)+.

Workup

  1. customThe reaction was quenched with 0.5 mL of water
  2. concentrationthe resulting mixture was concentrated in vacuo
  3. customthe residue was purified by column chromatography (MeOH:DCM=1:20)

Sources & evidence

ORD record
ord-6e7c7ce0b6c444b0a20c312b2fe40f89
Source dataset
uspto-grants-2011_09
Patent number
US08012976B2

Reaction notes

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