HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 22640352, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1) | HCID 466102 | — |
| Reactant | HCID 22640384 | HCID 22640384 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 22640352 | HCID 22640352 | — |
Reaction Steps
The above prepared 2-(6-[1,3]dioxolan-2-yl-8-ethoxy-2,2-dimethyl-2H-chromen-4-yl)-propan-2-ol was dissolved in 6 ml of methanol and 3 ml of water and treated with 54 mg of pyridinium p-toluenesulfonate. After 15 min. at room temperature, the reaction mixture was poured onto crushed ice/AcOEt, the organic layer washed with water, dried over magnesium sulfate and evaporated to dryness. Flash chromatography (SiO2 with n-hexane/AcOEt=7/3) yielded 194 mg of the title compound as colourless oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06818649B2 |
| Source dataset | uspto-grants-2004_11 |
| ORD ID | ord-8cfef682edb547e7b14ee5a9c7b88276 |
| Source note | uspto-grants-2004_11 |