Acetic Anhydride → 6-Acetamido-2-(2-propoxyphenyl)pyrimidin-4[3H]-one
Reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][CH2:15][CH2:16][CH3:17])[NH:5][C:4](=[O:18])[CH:3]=1.[C:19](OC(=O)C)(=[O:21])[CH3:20]>>[C:19]([NH:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][CH2:15][CH2:16][CH3:17])[NH:5][C:4](=[O:18])[CH:3]=1)(=[O:21])[CH3:20]Participants
3
Procedure
A stirred solution of 6-amino-2-(2-propoxyphenyl)-pyrimidin-4[3H]-one (0.5 g) and acetic anhydride was heated under reflux for 2.5 hours. The cooled reaction mixture was evaporated under reduced pressure to yield a residue which was washed with water and recrystallised twice from methanol to yield the title compound, 0.29 g, m.p. 230°-1° C.
Workup
- temperatureunder reflux for 2.5 hours
- customThe cooled reaction mixture
- customwas evaporated under reduced pressure
- customto yield a residue which
- washwas washed with water
- customrecrystallised twice from methanol
Sources & evidence
- ORD record
- ord-fa649858c6bc4bf3a6a8fb77b2988a69
- Source dataset
- uspto-grants-1992_06
- Patent number
- US05118686
Reaction notes
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