HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isobutyric anhydride → HCID 20322014, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isobutyric anhydride | HCID 7346 | — |
| Reactant | HCID 15620341 | HCID 15620341 | — |
| Reactant | 2-Methyl-1-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-1-propanone | HCID 20071624 | — |
| Catalyst | Sulfuric Acid | HCID 1118 | — |
| Product | HCID 20322014 | HCID 20322014 | 40% |
Reaction Steps
2-Methylpyrazolo[1,5-a]pyridine was worked up according to the same process as shown in example 1, with an excess isobutyric anhydride in the presence of 2-3 drops of concentrated sulfuric acid to prepare 3-isobutyryl-2-methylpyrazolo[1,5-a]pyridine (139-140°/5 mmHg). Yield 40%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04097483 |
| Source dataset | uspto-grants-1978_06 |
| ORD ID | ord-63f70b4ee1244ea0ace67cf5731b45cc |
| Source note | uspto-grants-1978_06 |