HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hexane → Benzoic acid, 4-hydroxy-3-nitro-, methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | 4-Hydroxy-3-nitrobenzoic acid | HCID 12033 | — |
| Reactant | Trimethylsilyldiazomethane | HCID 167693 | — |
| Solvent | Benzene methanol | HCID 21927730 | — |
| Product | Benzoic acid, 4-hydroxy-3-nitro-, methyl ester | HCID 66835 | 79% |
Reaction Steps
To a stirred solution of 4-hydroxy-3-nitrobenzoic acid (3.00 g, 0.0164 mol) in MeOH-benzene (1:4, v/v) was added dropwise 2.0 M-n-hexane solution of TMSCHN2 (8.2 mL, 0.0164 mol) at room temp. After the resulting solution was stirred for 4 hr at room temp, the mixture was evaporated off in vacuo. The oily residue was chromatographed on silica-gel with CHCl3 as eluent to afford 4.23 g (79%) methyl 4-hydroxy-3-nitrobenzoate as a pale yellow crystalline material.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06756378B2 |
| Source dataset | uspto-grants-2004_06 |
| ORD ID | ord-11476f7213434b268980df5e85cadd8c |
| Source note | uspto-grants-2004_06 |