HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzyl Bromide → D-leucic acid benzyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzyl Bromide | HCID 7498 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | (R)-2-hydroxy-4-methylpentanoic acid | HCID 439960 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | D-leucic acid benzyl ester | HCID 9991100 | 62.3% |
Reaction Steps
278 g of benzyl bromide were added to a stirred solution of 215 g of D-leucic acid and 246 g of triethylamine in 2.5 l of ethy acetate. The mixture was then heated under reflux for 5 hours, cooled and filtered to remove triethylamine hydrobromide. The filtrate was washed twice with 2M hydrochloric acid, water, saturated sodium bicarbonate solution and then saturated sodium chloride solution. The organic extract was dried over magnesium sulfate and evaporated to give 225 g of D-leucic acid benzyl ester as a yellow liquid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05304549 |
| Source dataset | uspto-grants-1994_04 |
| ORD ID | ord-2a65db725f7844339a3a8ea47ca58912 |
| Source note | uspto-grants-1994_04 |