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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 7569Generated: October 27, 2026

Phosphorus oxychloride → 2-tert-Butyl-7-cyclopentyl-5-ethylimidazo[5,1-f][1,2,4]triazin-4(3H)-one

https://huagongshe.com/reaction/7569

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantN-[1-(3-tert-butyl-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl)propyl]cyclopentanecarboxamideHCID 135752563—
Product2-tert-Butyl-7-cyclopentyl-5-ethylimidazo[5,1-f][1,2,4]triazin-4(3H)-oneHCID 135752546—

Reaction Steps

In analogy to the procedure for Example 1, 150 mg (0.50 mmol) crude N-[1-(3-tert-butyl-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl)propyl]cyclopentanecarboxamide, 80 mg (0.50 mmol) phosphoric trichloride are stirred at reflux for 3 hours, proportionate amounts of the solvents are used.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07087605B2
Source datasetuspto-grants-2006_08
ORD IDord-c462ab3399b44288913d58477018dab0
Source noteuspto-grants-2006_08