2(3H)-Benzoxazolone → HCID 18006576, compound
Reaction equation
[CH:1]1[CH:2]=[CH:3][C:4]2[O:10][C:8](=[O:9])[NH:7][C:5]=2[CH:6]=1.[CH3:11][NH2:12]>>[OH:10][C:4]1[CH:3]=[CH:2][CH:1]=[CH:6][C:5]=1[NH:7][C:8]([NH:12][CH3:11])=[O:9]Participants
3
Procedure
Benzoxazolinone (1 mole) was stirred with 2 moles of methylamine (25% aqueous solution) for 48 hours at 50° C., then some of the water and the excess of methylamine were distilled off at 60° C. under reduced pressure. The desired urea crystallised out on cooling; it had m.pt. 130° C. (decomp.).
Workup
- distillationsome of the water and the excess of methylamine were distilled off at 60° C. under reduced pressure
- customThe desired urea crystallised out
- temperatureon cooling
Sources & evidence
- ORD record
- ord-fd488989e793443882b2f79670f72754
- Source dataset
- uspto-grants-1983_09
- Patent number
- US04404356
Reaction notes
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