HuagongsheHuagongshe Chemistry Print Report · For research reference only
Thionyl Chloride → HCID 21537685, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Thionyl Chloride | HCID 24386 | — |
| Reactant | HCID 21537684 | HCID 21537684 | — |
| Product | HCID 21537685 | HCID 21537685 | — |
Reaction Steps
22.7 g. of 6-ethoxy-1-ethyl-3-methyl-1H-pyrazolo-[3,4-b]pyrazine-5-carboxylic acid (0.09 mol.) and 250 ml. of thionyl chloride are heated at reflux temperature for two hours. After vacuum removal of excess thionyl chloride, the residual 6-ethoxy-1-ethyl-3-methyl-1H-pyrazolo[3,4-b]pyrazine-5-carbonyl chloride is recrystallized from hexane, yield 20.5 g. (85%), m.p. 109°-111°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03957782 |
| Source dataset | uspto-grants-1976_05 |
| ORD ID | ord-bb4d9176d9934392b1477dfea0880b33 |
| Source note | uspto-grants-1976_05 |