HuagongsheHuagongshe Chemistry Print Report · For research reference only
Bromine → 2-Bromo-1-(4-hydroxy-3-nitrophenyl)ethanone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Bromine | HCID 24408 | — |
| Reactant | 4-Hydroxy-3-Nitroacetophenone | HCID 138723 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | 2-Bromo-1-(4-hydroxy-3-nitrophenyl)ethanone | HCID 78731 | — |
Reaction Steps
In 50 ml. of chloroform was dissolved 5.4 g. of 4-hydroxy-3-nitroacetophenone and then 5 ml. of chloroform solution of 4.8 g. of bromine was added dropwise to the solution gradually. Thereafter, the mixture was stirred for 15 minutes and concentrated under a reduced pressure to form yellow crystals. By recrystallizing the product from benzene-n-hexane, 6.3 g. of the crystals of α-bromo-4-hydroxy-3-nitroacetophenone melting at 69°-71° C. were obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03994974 |
| Source dataset | uspto-grants-1976_11 |
| ORD ID | ord-303403ff72e943f28254c8561d741dd9 |
| Source note | uspto-grants-1976_11 |