HuagongsheHuagongshe Chemistry Print Report · For research reference only
p-Toluenesulfonic acid → HCID 22241183, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | 3-[4-(2-Methoxyacetylamino)-1,3-dioxoisoindolin-2-yl]-2,6-dioxo-5-acetoxypiperidine | HCID 22241198 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 22241183 | HCID 22241183 | — |
Reaction Steps
A solution of 3-[4-methoxyacetylamino-1,3-dioxoisoindolin-2-yl]-2,6-dioxo-5-acetoxypiperidine (1.26 g, 3.5 mmol) and p-toluenesulfonic acid (0.33 g, 1.8 mmol) in methanol (20 mL) is heated at reflux for 5 hours. The solvent is removed in vacuo to give 3-[4-methoxyacetylamino-1,3-dioxoisoindolin-2-yl]-2,6-dioxo-5-hydroxypiperidine which is further purified by column chromatography.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07005438B2 |
| Source dataset | uspto-grants-2006_02 |
| ORD ID | ord-0ce5ec5e3ced403aac41a4b7ec1cd9f2 |
| Source note | uspto-grants-2006_02 |