HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydroxylamine → HCID 22625133, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydroxylamine | HCID 787 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Pivalaldehyde | HCID 12417 | — |
| Reactant | HCID 178418750 | HCID 178418750 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Chlorobenzene | HCID 7964 | — |
| Solvent | Hexane | HCID 8058 | — |
| Product | HCID 22625133 | HCID 22625133 | 73% |
Reaction Steps
A vial was charged with aminoalcohol 1 (0.0074 g, 0.026 mmol) prepared as in Example 1. To the vial was added 1.60 mL of a stock solution containing trimethylacetaldehyde (0.26 g), chlorobenzene internal standard (0.26 g), 1 M diethylzinc in hexane (6.0 mL), and toluene (3.0 mL). After 48 h, acetic anhydride (0.200 mL) was added. After an additional 72 h, a sample of the solution was analyzed by gas chromatography at 70° C. on a Cyclodex B stationary phase. The product 3-acetoxy-2,2-dimethylpentane was formed in 73% yield and 98% enantiomeric excess. The identity and yield of the product was established by comparison with an authentic sample prepared by treatment of racemic 2-methyl-3-pentanol with acetic anhydride.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06362344B1 |
| Source dataset | uspto-grants-2002_03 |
| ORD ID | ord-56d35eb15f66481194bfaa09d997e6d0 |
| Source note | uspto-grants-2002_03 |