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 ml. 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 2 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 | US04127657 |
| Source dataset | uspto-grants-1978_11 |
| ORD ID | ord-179e645b19a842528701e0f4755f5b47 |
| Source note | uspto-grants-1978_11 |