HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → HCID 69650415, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Gamma-Valerolactone | HCID 7921 | — |
| Reactant | 4-Methoxybenzaldehyde | HCID 31244 | — |
| Reactant | Sodium Methoxide | HCID 10942334 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | tert-Butyl methyl ether | HCID 15413 | — |
| Product | HCID 69650415 | HCID 69650415 | 48% |
Reaction Steps
74 g (0.5 mol) of 4-methyl-γ-butyrolactone are added to a suspension of 27 g (0.50 mol) of sodium methoxide in 400 g of methyl tert-butyl ether and, over the course of 1 h, 68 g (0.5 mol) of anisaldehyde are added thereto with stirring at room temperature. The mixture is maintained under reflux for a further 1 h and then cooled, and 200 g of iced water are added to the mixture and the pH is adjusted to 5 using 10% sulphuric acid. After the phases have separated, the product is distilled. This gives 65 g of the desired compound in a yield of 48% of theory. The specific absorbance E{fraction (1/1)} of the novel compound according to the present invention is 1.250, measured at a wavelength of λmax 310 nm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06258963B1 |
| Source dataset | uspto-grants-2001_07 |
| ORD ID | ord-18e62d7e2efe4abb9222b20eaea529d4 |
| Source note | uspto-grants-2001_07 |