Benzyl Bromide → 8-Benzyloxy-3-methyl-1H-quinolin-2-one

HRID 2401584Notes

Reaction equation

HRID 2401584 reaction equation
[CH2:1](Br)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[OH:15][C:16]1[CH:17]=[CH:18][CH:19]=[C:20]2[C:25]=1[NH:24][C:23](=[O:26])[C:22]([CH3:27])=[CH:21]2>CC(C)=O>[CH2:1]([O:15][C:16]1[CH:17]=[CH:18][CH:19]=[C:20]2[C:25]=1[NH:24][C:23](=[O:26])[C:22]([CH3:27])=[CH:21]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 4409863-Methyl-quinolin-2,8-diol

Product 1

HCID 224992238-Benzyloxy-3-methyl-1H-quinolin-2-one

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

Benzyl bromide (1.28 mL) is added to a suspension of potassium carbonate (2.98 g) in a solution of 8-hydroxy-3-methyl-1H-quinolin-2-one (1.26 g) in acetone (36 mL) at room temperature. The reaction mixture is refluxed for 18 hours, filtered, evaporated and purified by flash column chromatography on silica gel, eluting with 2% methanol in dichloromethane.

Workup

  1. temperatureThe reaction mixture is refluxed for 18 hours
  2. filtrationfiltered
  3. customevaporated
  4. custompurified by flash column chromatography on silica gel
  5. washeluting with 2% methanol in dichloromethane

Sources & evidence

ORD record
ord-ad1a3e6f845d4d0fa92b4545bb2bd6cb
Source dataset
uspto-grants-2014_08
Patent number
US08796307B2

Reaction notes

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