HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetate → 3-Hydroxy-5-nitrobenzotrifluoride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | 3-Methoxy-5-nitrobenzotrifluoride | HCID 520597 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | 3-Hydroxy-5-nitrobenzotrifluoride | HCID 2756251 | 42.7% |
Reaction Steps
To a solution of 1-Methoxy-3-nitro-5-trifluoromethyl-benzene (3.5 g, 15.83 mmol) in 20 ml of CHCl3 was added a solution of 1M boron tribromide (23.74 ml, 23.74 mmol) and the reaction was stirred at RT for 3 days resulting in conversion to product by TLC (20% EtOAc:Hexanes). The reaction was partitioned between CH2Cl2/1N NaOH and extracted. The aqueous phase was acidified with 1N HCl and again extracted with CH2Cl2. The organics were dried over sodium sulfate and stripped down in vacuo giving 3-Nitro-5-trifluoromethyl-phenol (1.4 g, 6.76 mmol) as a yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07276502B2 |
| Source dataset | uspto-grants-2007_10 |
| ORD ID | ord-bbacc063bc684e079bf1db4fe00fc2b0 |
| Source note | uspto-grants-2007_10 |