HuagongsheHuagongshe Chemistry Print Report · For research reference only
Urea → 5-Nitro-2,3-dihydro-1,3-benzoxazol-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Urea | HCID 1176 | — |
| Reactant | 2-Amino-4-Nitrophenol | HCID 3613389 | — |
| Product | 5-Nitro-2,3-dihydro-1,3-benzoxazol-2-one | HCID 263965 | — |
Reaction Steps
This was prepared in a similar manner as the 5-chloro-2-hydroxyphenyl analogue, by fusing 2-amino-4-nitrophenol and urea to form 5-nitrobenzoxazolinone (m.pt. 215° C. after recrystallisation from acetone), and then heating with alcoholic dimethylamine as above: it was not recrystallised.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04404356 |
| Source dataset | uspto-grants-1983_09 |
| ORD ID | ord-795c4012415748569c7f9473bd2be95b |
| Source note | uspto-grants-1983_09 |