HuagongsheHuagongshe Chemistry Print Report · For research reference only
Bromine → Methy 4-amino-3-bromo-5-[(2-hydroxy-2-methylpropyl)amino]benzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Bromine | HCID 24408 | — |
| Reactant | Methyl 4-amino-3-[(2-hydroxy-2-methylpropyl)amino]benzoate | HCID 66693495 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | Methy 4-amino-3-bromo-5-[(2-hydroxy-2-methylpropyl)amino]benzoate | HCID 66693821 | 26.9% |
Reaction Steps
To a solution of methy 4-amino-3-[(2-hydroxy-2-methylpropyl)amino]benzoate (1.5 g, 6.30 mmol) in DCM (12.59 mL) added bromine (0.324 mL, 6.30 mmol) drop-wise. The reaction was complete upon total addition of bromine. Reaction mixture was quenched with sodium sulfite and diluted with EtOAc. The aqueous layer was washed with EtOAc (3×). The combined organics were dried over magnesium sulfate, filtered and concentrated. Purification by reverse phase HPLC (C-18, 95% water/acetonitrile→5% water/acetonitrile with 0.1% TFA) gave the title compound (0.538 g): LC-MS [M]=317.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09238647B2 |
| Source dataset | uspto-grants-2016_01 |
| ORD ID | ord-92b8a2c1fb1c4eebb1e173c7caa2d8c6 |
| Source note | uspto-grants-2016_01 |