Morpholine → 4-(2-(1-(2-fluorobenzyl)-5-(oxazol-4-yl)-1H-1,2,4-triazol-3-yl)pyridin-4-yl)morpholine

HRID 2174285Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]([C:8]2[N:12]=[C:11]([C:13]3[N:14]=[CH:15][O:16][CH:17]=3)[N:10]([CH2:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=3[F:25])[N:9]=2)[CH:3]=1.[NH:26]1[CH2:31][CH2:30][O:29][CH2:28][CH2:27]1>C(O)CO.O1CCOCC1.[Cl-].[Na+].O.[Cu-]=O>[F:25][C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=1[CH2:18][N:10]1[C:11]([C:13]2[N:14]=[CH:15][O:16][CH:17]=2)=[N:12][C:8]([C:4]2[CH:3]=[C:2]([N:26]3[CH2:31][CH2:30][O:29][CH2:28][CH2:27]3)[CH:7]=[CH:6][N:5]=2)=[N:9]1

Participants

Conditions

Temperature: 100 °C

Procedure

To a stirring suspension of 4-(3-(4-bromopyridin-2-yl)-1-(2-fluorobenzyl)-1H-1,2,4-triazol-5-yl)oxazole (I-54, 1 eq) and copper(I) oxide (1 eq) in ethylene glycol-dioxane (approx. 4:1) in a sealed tube was added morpholine (30 eq). The resultant reaction mixture was heated at 100° C. for 12 hr and then cooled to room temperature, treated with brine and extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate, concentrated and purified using SiO2 chromatography (methylene chloride/acetonitrile/methanol) to afford 4-(2-(1-(2-fluorobenzyl)-5-(oxazol-4-yl)-1H-1,2,4-triazol-3-yl)pyridin-4-yl)morpholine in 10.3% yield.

Workup

customThe resultant reaction mixture
temperaturecooled to room temperature
extractionextracted with ethyl acetate
dry with materialThe combined organic layers were dried over sodium sulfate
concentrationconcentrated
custompurified

Sources & evidence

ORD record: ord-d0f72688f8b444d09cac179de017bf05
Source dataset: uspto-grants-2015_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09061030B2

Reaction notes

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