HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 619996, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diethyl Oxalate | HCID 7268 | — |
| Reactant | 1-Bromohexadecane | HCID 8213 | — |
| Reactant | Magnesium | HCID 5462224 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 619996 | HCID 619996 | — |
Reaction Steps
A slurry of 40 ml of hexadecyl bromide in 250 ml of tetrahydrofuran containing 3.64 g of magnesium chips is put in a sonic bath. This solution is added dropwise to a stirred solution of 35.3 ml of diethyloxalate in 70 ml of tetrahydrofuran at -15° C. over 1 hour. The reaction mixture is poured into 3N hydrochloric acid and extracted with methylene chloride. The extract is dried and evaporated. The concentrate is purified by chromatography on silica gel using 5% ethyl acetate:petroleum ether. Fractions containing product are combined and evaporated. The residue is crystallized from petroleum ether to give 21.9 g of the desired product as a solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05208223 |
| Source dataset | uspto-grants-1993_05 |
| ORD ID | ord-91708b883ab44a35a21156d46b1f0c44 |
| Source note | uspto-grants-1993_05 |