HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methylparaben → Methyl 4-[3-(dimethylamino)propoxy]benzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methylparaben | HCID 7456 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl diazene-1,2-dicarboxylate | HCID 75555 | — |
| Reactant | 3-(Dimethylamino)-1-propanol | HCID 76646 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Methyl 4-[3-(dimethylamino)propoxy]benzoate | HCID 18508114 | 79% |
Reaction Steps
To a solution of methyl 4-hydroxybenzoate (1.0 g, 6.58 mmol), 3-dimethylamino-1-propanol (1.01 g, 9.87 mmol), and triphenylphosphine (2.6 g, 9.87 mmol) at 0° C. in THF (20 mL) was added dropwise diisopropyl azodicarboxylate (1.99 g, 9.87 mmol). After stirring for 16 h at room temperature the solution was concentrated and the residue purified by column chromatography (silica gel, methanol/dichloromethane) to yield the title compound as an oily solid (1.25 g, 5.2 mmol). MS(ESI): 238.1 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06562842B2 |
| Source dataset | uspto-grants-2003_05 |
| ORD ID | ord-821086d9344c4ea2b6ebef5f42d05c44 |
| Source note | uspto-grants-2003_05 |