Dimethylamine → HCID 66880055, compound

HRID 2190789Notes

Reaction equation

F[C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[C:8]1[O:9][C:10]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][C:11]=2[N:12]=1.C(=O)([O-])[O-].[K+].[K+].[CH3:27][N:28](C=O)[CH3:29].CNC>O.C1COCC1>[CH3:27][N:28]([CH3:29])[C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[C:8]1[O:9][C:10]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][C:11]=2[N:12]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a mixture of 0.28 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.14 g of potassium carbonate and 3 ml of DMF, 3 ml of a THF solution of dimethylamine was added and stirred while heating at 60° C. for 3.3 hours. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography, and the resultant crystals were washed with diethyl ether to give 0.27 g of dimethyl-{4-[5-(trifluoromethyl)benzoxazole-2-yl]pyridin-3-yl}amine (hereinafter, referred to as “active compound 131”).

Workup

additionwas added
temperatureThe reaction mixture was cooled to room temperature
extractionfollowed by extraction with ethyl acetate twice
washThe combined organic layers were washed with a saturated sodium chloride solution
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated under reduced pressure
washthe resultant crystals were washed with diethyl ether

Sources & evidence

ORD record: ord-feb1983dc6544df7b779dd7598fa6f11
Source dataset: uspto-grants-2012_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08324387B2

Reaction notes

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