Diethylamine → 3-(4-(1H-Pyrazol-1-yl)benzyl)-6-bromo-4-chloro-N,N-diethylquinolin-2-amine

HRID 928793Notes

Reaction equation

[N:1]1([C:6]2[CH:27]=[CH:26][C:9]([CH2:10][C:11]3[C:12](OC)=[N:13][C:14]4[C:19]([C:20]=3[Cl:21])=[CH:18][C:17]([Br:22])=[CH:16][C:15]=4C)=[CH:8][CH:7]=2)[CH:5]=[CH:4][CH:3]=[N:2]1.[CH2:28]([NH:30][CH2:31][CH3:32])[CH3:29]>CN(C=O)C.CCOC(C)=O>[N:1]1([C:6]2[CH:27]=[CH:26][C:9]([CH2:10][C:11]3[C:12]([N:30]([CH2:31][CH3:32])[CH2:28][CH3:29])=[N:13][C:14]4[C:19]([C:20]=3[Cl:21])=[CH:18][C:17]([Br:22])=[CH:16][CH:15]=4)=[CH:8][CH:7]=2)[CH:5]=[CH:4][CH:3]=[N:2]1

Participants

Conditions

Temperature: 115 °C

Procedure

A mixture of 3-(4-(1H-pyrazol-1-yl)benzyl)-6-bromo-2,4-dichloroquinoline (1.44 g, 3.33 mmol, Intermediate 6, step c) and diethylamine (6.91 mL, 66.5 mmol) in DMF (10 mL) in a sealed tube was heated in a 115° C. oil bath for 23 hours. The mixture was diluted with EtOAc and extracted with water (5×, saturated aqueous NaCl added as needed to achieve phase separation). The organic phase was dried (Na2SO4), filtered, and concentrated. The residue was purified by flash column chromatography (silica gel, dry loading, 2-10% EtOAc-Heptane first column, 0-4% EtOAc-Heptane second column) to afford the title compound as a white solid.

Workup

extractionextracted with water (5×, saturated aqueous NaCl added as needed to achieve phase separation)
dry with materialThe organic phase was dried (Na2SO4)
filtrationfiltered
concentrationconcentrated
customThe residue was purified by flash column chromatography (silica gel, dry loading, 2-10% EtOAc-Heptane first column, 0-4% EtOAc-Heptane second column)

Sources & evidence

ORD record: ord-079ee80977af4a42995fb0c580a41ff0
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09290476B2

Reaction notes

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