HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → (3-Methyloxetan-3-yl)methyl hex-5-ynoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 3-Methyl-3-oxetanemethanol | HCID 137837 | — |
| Reactant | 5-Hexynoic acid | HCID 143036 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (3-Methyloxetan-3-yl)methyl hex-5-ynoate | HCID 13123201 | 95.4% |
Reaction Steps
To a solution of 5-hexynoic acid (10.0 g) and 3-methyl-3-oxetane methanol (10.0 g) in methylene chloride (50 ml), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (20.5 g), and 4-dimethylaminopyridine (1.09 g) were added under cooling with ice. The mixture was stirred at room temperature for 45 minutes. The reaction mixture was poured into iced water and extracted with ethyl acetate. The organic layer was washed by water and an aqueous saturated solution of sodium chloride, sucessively, dried over anhydrous magnesium sulfate and concentrated. The residue was purified with silica gel column chromatography (n-hexane:ethyl acetate=4:1) to obtain the title compound (16.7 g) having the following physical data.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06664281B1 |
| Source dataset | uspto-grants-2003_12 |
| ORD ID | ord-0b9397df769947b8a8b4e5c84888012e |
| Source note | uspto-grants-2003_12 |