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Water → 6,7-Dimethoxy-4-(7-methyl-isoquinolin-6-yloxy)-quinoline

HRID 228876
Notes
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Reaction equation

HRID 228876 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[CH3:12])[CH:8]=[N:7][CH:6]=[CH:5]2.Cl[C:14]1[C:23]2[C:18](=[CH:19][C:20]([O:26][CH3:27])=[C:21]([O:24][CH3:25])[CH:22]=2)[N:17]=[CH:16][CH:15]=1.O>CN(C)C1C=CN=CC=1.ClC1C=CC=CC=1Cl>[CH3:25][O:24][C:21]1[CH:22]=[C:23]2[C:18](=[CH:19][C:20]=1[O:26][CH3:27])[N:17]=[CH:16][CH:15]=[C:14]2[O:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[CH3:12])[CH:8]=[N:7][CH:6]=[CH:5]2
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 962WaterHCID 4596104-Chloro-6,7-dimethoxyquinolineHCID 1357421667-Methylisoquinolin-6-ol

Product 1

HCID 230783526,7-Dimethoxy-4-(7-methyl-isoquinolin-6-yloxy)-quinolineYield 58%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalyst
HCID 7239
1,2-Dichlorobenzene
Solvent

Conditions

Temperature
140 °C

Procedure

6-Hydroxy-7-methylisoquinoline (21 mg), 4-chloro-6,7-dimethoxyquinoline (81 mg), and 4-dimethylaminopyridine (44 mg) were suspended in o-dichlorobenzene (2.5 ml), and the suspension was stirred at 140° C. for 6 hr. The reaction solution was cooled to room temperature, water was then added to reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using acetone-chloroform to give the title compound (24 mg, yield 58%).

Workup

  1. temperatureThe reaction solution was cooled to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was then washed with water and saturated brine
  4. dry with materialwas dried over anhydrous sodium sulfate
  5. customThe solvent was removed by distillation under the reduced pressure
  6. customthe residue was purified by thin layer chromatography

Sources & evidence

ORD record
ord-c7525201eaec41c78fed1eafd5e7498f
Source dataset
uspto-grants-2009_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07560558B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes