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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923336Generated: October 27, 2026

p-Toluenesulfonic acid → HCID 178439992, compound

https://huagongshe.com/reaction/923336

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantHCID 178440450HCID 178440450—
ReactantHCID 178472159HCID 178472159—
Solvent1-ButanolHCID 263—
ProductHCID 178439992HCID 17843999219.3%

Reaction Conditions

Temperature130 °C

Reaction Steps

To a solution of 3-isopropyl-1H-1,2,4-triazol-5-amine (100 mg, 0.79 mmol) in n-BuOH (1 mL) was added ethyl 3-(1H-benzo[d][1,2,3]triazol-5-yl)-3-oxopropanoate (275 mg, 1.18 mmol) and TsOH (7 mg, 0.04 mmol), and the resulting mixture was stirred for 5 h at 130° C. The solids were collected by filtration and washed with MeOH (3×1 mL) to afford 5-(1H-benzo[d][1,2,3]triazol-5-yl)-2-isopropyl-[1,2,4]triazolo[1,5-α]pyrimidin-7(4H)-one as a off-white solid (45 mg, 19%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278973B2
Source datasetuspto-grants-2016_03
ORD IDord-53c0b9fe94fc414e89835872137e6a7e
Source noteuspto-grants-2016_03