HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanolamine → Methyl 3-chloro-5-{[(2-hydroxyethyl)amino]carbonyl}-1H-pyrrole-2-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanolamine | HCID 700 | — |
| Reactant | Methyl 3-chloro-5-(chlorocarbonyl)-1H-pyrrole-2-carboxylate | HCID 86644903 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Methyl 3-chloro-5-{[(2-hydroxyethyl)amino]carbonyl}-1H-pyrrole-2-carboxylate | HCID 68487232 | 57.3% |
Reaction Steps
Ethanolamine (0.175 mL, 2.90 mmol) was added to a solution of methyl 3-chloro-5-(chlorocarbonyl)-1H-pyrrole-2-carboxylate (0.150 g, 0.580 mmol) in THF and the resulting solution stirred until no starting material was evident by TLC. Purification was accomplished by silica gel column chromatography (30-100% EtOAc/hexanes) to afford the title compound (0.082 g, 57%) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.37 (br. s., 1H), 8.42 (t, 1H), 6.80 (s, 1H), 4.75 (t, 1H), 3.78 (s, 3H), 3.46 (q, 2H), 3.27 (q, 2H). LCMS: m/z 245.4 (M−1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08304419B2 |
| Source dataset | uspto-grants-2012_11 |
| ORD ID | ord-20e73671c981424ea5001ff02cbebfd3 |
| Source note | uspto-grants-2012_11 |