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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1529471Generated: November 4, 2026

Triethylamine → HCID 86657561, compound

https://huagongshe.com/reaction/1529471

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTrifluoromethanesulfonic anhydrideHCID 67749—
ReactantHCID 178425474HCID 178425474—
SolventDichloromethaneHCID 6344—
ProductHCID 86657561HCID 8665756174.8%

Reaction Conditions

Temperature-78 °C

Reaction Steps

To the 500 mL round-bottomed flask with 3,4-dimethyl-1-(6-methylpyridin-2-yl)-1H-pyrazol-5-ol (6.68 g, 33 mmol) were added Et3N (5.5 mL, 39 mmol) and 35 mL CH2Cl2. the solution was cooled in dry ice acetone bath. Tf2O (6.1 mL, 36 mmol) was added slowly. The mixture was stirred at −78° C. and allowed to warm to room temperature. The mixture was then concentrated in vacuo. The crude product was purified using a Biotage Horizon System (0 to 25% EtOAc/hexane) to afford a colorless oil (8.28 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09090625B2
Source datasetuspto-grants-2015_07
ORD IDord-adbb43e2726c41599ce758ac76c54987
Source noteuspto-grants-2015_07