HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 4-(4-bromobenzoyl)benzoate → HCID 67341340, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 4-(4-bromobenzoyl)benzoate | HCID 24722740 | — |
| Reactant | HCID 178444609 | HCID 178444609 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 67341340 | HCID 67341340 | 19% |
Reaction Steps
To a solution of 4-(4-Bromo-benzoyl)-benzoic acid ethyl ester (2.0 g, 6 mmol) in THF (20 mL) at 0° C. is added hexylmagnesium bromide (2M, 3.3 mL). After stirring at room temperature for 2 hours, it is quenched with saturated ammonium chloride, extracted with EtOAc. The organic is concentrated and purified by column chromatography to give 4-[1-(4-Bromo-phenyl)-1-hydroxy-heptyl]-benzoic acid ethyl ester (0.48 g, 19%), which is taken into methanol (2 mL), treated with sodium hydroxide (5N aqueous, 1 mL) for 3 h at room temperature. The mixture is concentrated, diluted with ethyl acetate, acidified with 5 N HCl (1.1 mL), extracted with ethyl acetate. The organic layers are dried and concentrated giving to afford the titled compound (0.47 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07989457B2 |
| Source dataset | uspto-grants-2011_08 |
| ORD ID | ord-602d730a90ea482995583c873a041139 |
| Source note | uspto-grants-2011_08 |