HuagongsheHuagongshe Chemistry Print Report · For research reference only
Lithium iodide → 2-[2-(4-Bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Lithium iodide | HCID 66321 | — |
| Reactant | 2-[2-(4-Bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid methyl ester | HCID 24812096 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | 2-[2-(4-Bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid | HCID 58001343 | 25% |
Reaction Steps
A solution of 2-[2-(4-bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid methyl ester (50 mg, 0.125 mmol) and lithium Iodide (189 mg, 1.25 mmol) in pyridine (3 mL) was heated to reflux until reaction completion, then cooled and distilled off the solvent under reduced pressure. The residue was taken up in water, neutralized and extracted with methanol/MC mixture (10%). The combined extracts were washed with brine and water, dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. The resultant crude product was purified by HPLC (MeOH/MC=10%) to afford 2-[2-(4-bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid as a colorless solid (0.012 g, 25% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08394799B2 |
| Source dataset | uspto-grants-2013_03 |
| ORD ID | ord-4dd6ec5d58e44a21a28c88685105e6c9 |
| Source note | uspto-grants-2013_03 |