HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 2-cyclopropyl-N-methoxy-N-methylacetamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 1,1'-Carbonyldiimidazole | HCID 68263 | — |
| Reactant | Methanamine, N-methoxy-, hydrochloride (1:1) | HCID 81138 | — |
| Reactant | Cyclopropaneacetic acid | HCID 138440 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 2-cyclopropyl-N-methoxy-N-methylacetamide | HCID 22473766 | 89% |
Reaction Steps
Stir cyclopropaneacetic acid (30 g, 300 mmol) in dichloromethane (1 L) and treat with 1,1′-carbonyldiimidazole (52.5 g, 324 mmol) slowly. Stir for 2 hrs at room temperature and treat with N,O-dimethylhydroxylamine hydrochloride (30 g, 308 mmol), neat, in one portion; stir overnight. Pour mixture into water and extract twice with dichloromethane. Wash organic layers with water, dilute hydrochloric acid, saturated sodium bicarbonate solution, dry with magnesium sulfate, filter, and evaporate to provide the title compound (38 g, 89%). 1H NMR (CDCl3) δ 3.66 (s, 3H), 3.18 (s, 3H), 2.35 (d, J=8.0 Hz, 2H), 1.08 (m, 1H), 0.54 (m, 2H), 0.16 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07754742B2 |
| Source dataset | uspto-grants-2010_07 |
| ORD ID | ord-892b1c38a17146228961970c7067296d |
| Source note | uspto-grants-2010_07 |