4-Aminophenol → 4-(5-(3,6-Dihydro-2H-pyran-4-YL)pyrimidin-4-yloxy)aniline

HRID 410320Notes

Reaction equation

[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.Cl[C:10]1[C:15]([C:16]2[CH2:17][CH2:18][O:19][CH2:20][CH:21]=2)=[CH:14][N:13]=[CH:12][N:11]=1.C(=O)([O-])[O-].[Cs+].[Cs+].CS(C)=O>O>[O:19]1[CH2:20][CH:21]=[C:16]([C:15]2[C:14]([O:8][C:5]3[CH:6]=[CH:7][C:2]([NH2:1])=[CH:3][CH:4]=3)=[N:13][CH:12]=[N:11][CH:10]=2)[CH2:17][CH2:18]1

Participants

Conditions

Temperature: 100 °C

Procedure

To a 150 mL sealable tube was added 4-aminophenol (388 mg, 3.56 mmol), 4-chloro-5-(3,6-dihydro-2H-pyran-4-yl)pyrimidine (700 mg, 3.56 mmol), and cesium carbonate (1218 mg, 3.74 mmol) with DMSO (23.700 ml). The vessel was sealed and heated to 100° C. for 2 h. The reaction mixture was cooled to room temperature and diluted with water before extracting with ethyl acetate. The combined organics were dried over sodium sulfate, filtered, and concentrated under reduced pressure to a dark brown oil that was used without purification. MS (ESI, pos. ion) m/z: 270.0 (M+1).

Workup

customThe vessel was sealed
temperatureThe reaction mixture was cooled to room temperature
extractionbefore extracting with ethyl acetate
dry with materialThe combined organics were dried over sodium sulfate
filtrationfiltered
concentrationconcentrated under reduced pressure to a dark brown oil that
customwas used without purification

Sources & evidence

ORD record: ord-dd1912f6ced94d329a437b1064e320a5
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08759532B2

Reaction notes

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