HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diglyme → 2-Methyl-4-phenyl-4H-pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidin-5(8H)-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diglyme | HCID 8150 | — |
| Reactant | Selenium Dioxide | HCID 24007 | — |
| Reactant | 1-Furfuryl-2-methyl-4-phenyl-4H-pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidin-5(8H)-one | HCID 22757469 | — |
| Product | 2-Methyl-4-phenyl-4H-pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidin-5(8H)-one | HCID 22757453 | — |
Reaction Steps
0.01 mol. of 1-furfuryl-2-methyl-4-phenyl-4H-pyrazolo-[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidin-5(8H)-one is heated in 50 ml. of diethyleneglycol dimethyl ether containing 0.01 mol. of selenium dioxide at reflux temperature with stirring for two hours. The mixture is filtered hot and evaporated to dryness. Crystalline 2-methyl-4-phenyl-4H-pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidin-5(8H)-one remains.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04128645 |
| Source dataset | uspto-grants-1978_12 |
| ORD ID | ord-87e48bdf16e24ee0bb7856572c455513 |
| Source note | uspto-grants-1978_12 |