HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2374331Generated: October 28, 2026
1,1'-Carbonyldiimidazole → 4-Pentyl-1,4-dihydro-5H-[1,2,4]triazolo[5,1-i]purin-5-one
https://huagongshe.com/reaction/2374331
Participants
| Role | Name | HCID | Charge |
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| Reactant | 1,1'-Carbonyldiimidazole | HCID 68263 | — |
| Reactant | N-Pentyl-5-(1H-1,2,4-triazol-5-yl)-1H-imidazol-4-amine | HCID 135984707 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | 4-Pentyl-1,4-dihydro-5H-[1,2,4]triazolo[5,1-i]purin-5-one | HCID 135984684 | 5.1% |
Reaction Steps
A mixture of N-pentyl-5-(1H-1,2,4-triazol-5-yl)-1H-imidazol-4-amine (0.52 g, 2.4 mmol) and N,N-carbonyldiimidazole (0.57 g, 3.5 mmol) in 1,4-dioxane (10 mL) was stirred at 110° C. for 2 hours. The solvent was removed under reduced pressure, and the residue was purified by preparative LCMS to yield the desire product (30 mg, 5% yield). LCMS calculated for C11H15N6O (M+H): 247.1; found: 247.1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07462624B2 |
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| Source dataset | uspto-grants-2008_12 |
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| ORD ID | ord-c33e6e209cdb47968b5fc387a513dd28 |
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| Source note | uspto-grants-2008_12 |
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