HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetoacetate → Ethyl 2-(4-chlorobenzyl)acetoacetate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetoacetate | HCID 8868 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 1-(Bromomethyl)-4-chlorobenzene | HCID 69329 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Ethyl 2-(4-chlorobenzyl)acetoacetate | HCID 2757404 | 63.8% |
Reaction Steps
To a suspension of NaH (1.6 g, 40 mmol) in DMF (60 mL) at 0° C. was added ethyl acetoacetate (5.7 g, 44 mmol). The mixture was stirred for 30 minutes and p-chlorobenzyl bromide (8.2 g, 40 mmol) was added. The reaction mixture was stirred at r.t. for 2 hours and then quenched with water and extracted with EtOAc. The combined organic layers were washed with water and brine, dried over Na2SO4 and concentrated. The residue was purified by silica gel chromatography eluted with 10% EtOAc in Hexanes to provide 6.5 g of the title compound as a colorless oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07144913B2 |
| Source dataset | uspto-grants-2006_12 |
| ORD ID | ord-6868f67116934c86987035037a44948e |
| Source note | uspto-grants-2006_12 |