HuagongsheHuagongshe Chemistry Print Report · For research reference only
Aniline → HCID 10822558, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Aniline | HCID 6115 | — |
| Reactant | Ethylene Oxide | HCID 6354 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 4-Amino-3-fluorophenol hydrochloride | HCID 44886912 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 10822558 | HCID 10822558 | — |
Reaction Steps
A solution of 2-fluoro-4-hydroxyaniline hydrochloride (3 g) in MeOH (50 mL) was treated with aqueous NaOH (0.74 g in 10 mL deionized water) and the resulting clear solution was concentrated to dryness to provide a residue of crude aniline free base. A 0° C. solution of the crude aniline residue in 1:1 AcOH/deionized water (32 mL) in a pressure tube was treated with liquid ethylene oxide condensed at −78° C. (7.8 g), the tube was sealed, and the reaction mixture allowed to warm up to RT. The reaction mixture was stirred at RT 48 h then cooled, evaporated to dryness and purified by silica gel chromatography (0-7% MeOH/DCM) to provide N,N-bis-(2-hydroxyethyl)-2-fluoro-4-hydroxyaniline (2 g) as a grey powder.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08309554B2 |
| Source dataset | uspto-grants-2012_11 |
| ORD ID | ord-bd2d86c2ea0b4deaaf6b6ecc950dbbdc |
| Source note | uspto-grants-2012_11 |