HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetone → 4-(2-Carboxypropan-2-ylamino)-2-fluorobenzoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetone | HCID 180 | — |
| Reactant | Chlorobutanol | HCID 5977 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 4-Amino-2-fluorobenzoic acid | HCID 302680 | — |
| Product | 4-(2-Carboxypropan-2-ylamino)-2-fluorobenzoic acid | HCID 67395503 | — |
Reaction Conditions
| Temperature | 0 °C |
|---|
Reaction Steps
4-Amino-2-fluoro-benzoic acid (0.2 g, 1.29 mmol) and 1,1,1-trichloro-2-methyl-propan-2-ol (0.593 g, 3.35 mmol) were dissolved in anhydrous acetone and the solution was cooled at 0° C. Powdered sodium hydroxide (0.2 g, 5.01 mmol) was added portion-wise after which the reaction mixture was warmed to and stirred at room temperature for 12 h. Volatiles were removed under reduced pressure and the residue was acidified with 1M aqueous HCl. The crude product obtained was purified by reverse phase HPLC to obtain 4-(1-carboxy-1-methyl-ethylamino)-2-fluoro-benzoic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09174943B2 |
| Source dataset | uspto-grants-2015_11 |
| ORD ID | ord-8de38b3b91444bbfa8ff00208485c8cd |
| Source note | uspto-grants-2015_11 |