Water → 3-(6,7-Dimethoxy-quinolin-4-yloxy)-naphthalen-2-ol

HRID 229042

Reaction equation

[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[C:3]([OH:11])[C:2]=1[OH:12].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:12][C:2]1[C:3]([OH:11])=[CH:4][C:5]2[C:10]([CH:1]=1)=[CH:9][CH:8]=[CH:7][CH:6]=2

Participants

Conditions

Temperature: 130 °C

Procedure

Naphthalene-2,3-diol (1.00 g), 4-chloro-6,7-dimethoxyquinoline (691 mg), and 4-dimethylaminopyridine (1.14 g) were suspended in o-dichlorobenzene (20 ml), and the mixture was stirred at 130° C. for one hr. The reaction solution was cooled to room temperature, water was then added to the reaction solution, and the mixture was extracted with chloroform. The chloroform layer was then washed with water and saturated brine and was dried over anhydrous magnesium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by column chromatography using chloroform-methanol to give the title compound (627 mg, yield 58%).

Workup

temperatureThe reaction solution was cooled to room temperature
extractionthe mixture was extracted with chloroform
washThe chloroform layer was then washed with water and saturated brine
dry with materialwas dried over anhydrous magnesium sulfate
customThe solvent was removed by distillation under the reduced pressure
customthe residue was purified by column chromatography

Sources & evidence

ORD record: ord-14bf1f949cbb41b0bca79364bb9d621e
Source dataset: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07560558B2

Linked notes

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