HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 18374023, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | tert-Butyl chloroacetate | HCID 66052 | — |
| Reactant | Bicyclo(2.2.1)hept-5-ene-2-carboxaldehyde | HCID 95117 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Hexane | HCID 8058 | — |
| Product | HCID 18374023 | HCID 18374023 | 95% |
Reaction Steps
In a nitrogen atmosphere, a solution of 112 g of potassium tert-butoxide in 400 g of dry tetrahydrofuran was added dropwise over 2 hours to a mixture of 122 g of 5-norbornene-2-carbaldehyde, 151 g of tert-butyl chloroacetate, and 500 g of dry tetrahydrofuran at 0-5° C. After one hour of stirring, 400 g of water was added to stop the reaction. The organic layer obtained by hexane extraction was washed with water, dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo. Purification by vacuum distillation yielded 224 g (yield 95%) of tert-butyl 2,3-epoxy-3-(5-norbornen-2-yl)propionate as a fraction having a boiling point of 92-94° C./53 Pa.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06500971B2 |
| Source dataset | uspto-grants-2002_12 |
| ORD ID | ord-49833f1306d44210b568a44e3d9a08ce |
| Source note | uspto-grants-2002_12 |