HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetate → HCID 53645824, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Benzene, 1-fluoro-2-methyl-4-nitro- | HCID 68001 | — |
| Reactant | 1-Benzyl 3-methyl propanedioate | HCID 572135 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 53645824 | HCID 53645824 | — |
Reaction Steps
Sodium hydride (1.29 g of 60% dispersion in oil) was added portionwise to a stirred solution of malonic acid, methyl benzyl ester (5.84 ml) in dry N,N-dimethylformamide (40 ml). After 2.5 h 2-fluoro-5-nitro-toluene (5.0 g) was added, and the mixture was warmed to 100° for 18 h. The mixture was cooled then partioned between ethyl acetate and water. The aqueous phase was separated and extracted further with ethyl acetate. The combined organic extracts were dried, concentrated, and purified by chromatography eluting with cyclohexane:ethyl acetate (6:1) to give 2-(2-methyl-4-nitro-phenyl)-malonic acid benzyl ester methyl ester, admixed with the starting malonate ester, as a yellow oil (4.60 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06048872 |
| Source dataset | uspto-grants-2000_04 |
| ORD ID | ord-990019d9489d4fa2a98d52a7f3839674 |
| Source note | uspto-grants-2000_04 |