HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosphorus tribromide → Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-bromobutyrate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosphorus tribromide | HCID 24614 | — |
| Reactant | Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-hydroxy-butyrate | HCID 21964458 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-bromobutyrate | HCID 21964551 | — |
Reaction Steps
To a solution of Ethyl 4-(3-(2,6-dimethylbenzyloxy)phenyl)-4-hydroxy-butyrate (Step D) in dioxane, add phosphorous tribromide in dioxane dropwise. After stirring at room temperature for 16 hours, quench with water and chloroform. After few minutes, the reaction mixture can be neutralized by mild aqueous base, dry organic layer over Na2SO4, filter, concentrate and purify by flash chromatography on silica gel column (EtOAc:hex).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07329782B2 |
| Source dataset | uspto-grants-2008_02 |
| ORD ID | ord-7a83f9720ee044529b0d28aff034e841 |
| Source note | uspto-grants-2008_02 |