Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2368591Generated: November 1, 2026

Trifluoroacetic acid → 9-pentyl-3-(trifluoromethyl)-6,9-dihydro-5H-[1,2,4]triazolo[4,3-a]purin-5-one

https://huagongshe.com/reaction/2368591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 178446164HCID 178446164—
Product9-pentyl-3-(trifluoromethyl)-6,9-dihydro-5H-[1,2,4]triazolo[4,3-a]purin-5-oneHCID 5760030260.2%

Reaction Steps

The mixture of (2E)-3-pentyl-3,7-dihydro-1H-purine-2,6-dione 2-hydrazone (200 mg, 0.85 mol) in trifluoroacetic acid (10 mL) was refluxed overnight. The reaction mixture was concentrated and purified by preparative LCMS to yield the desired product (160 mg, 60.2%). LCMS calculated for C12H14F3N6O (M+H): 315.1. Found 315.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08703783B2
Source datasetuspto-grants-2014_04
ORD IDord-d2c66ad111134096a752334011c9606a
Source noteuspto-grants-2014_04