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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 455061Generated: October 25, 2026

1,2,4-Triazolo(4,3-a)pyridin-3(2H)-one → 2-((2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one

https://huagongshe.com/reaction/455061

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2,4-Triazolo(4,3-a)pyridin-3(2H)-oneHCID 81431—
Reactant3-(Chloromethyl)-2-(4-chlorophenyl)imidazo[1,2-a]pyridine hydrochlorideHCID 67028719—
Product2-((2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-oneHCID 67308637—

Reaction Steps

The title compound was prepared according to Method B and the experimentals described for compound 91 from 3-(chloromethyl)-2-(4-chlorophenyl)imidazo[1,2-a]pyridine hydrochloride and [1,2,4]triazolo[4,3-a]pyridin-3(2H)-one. M/e+ 376 for C20H15 ClN5O (M+H)+; 1H-NMR (400 MHz, CDCl3) δ 8.68 (d, J=6.9 Hz, 1H), 8.18 (d, J=8.4 Hz, 2H), 7.80 (d, J=7.3 Hz, 1H), 7.63 (d, J=9.1 Hz, 1H), 7.50 (d, J=8.4 Hz, 2H), 7.25 (m, 1H), 7.09 (dd, J=4.0, 2.9 Hz, 2H), 6.89 (m, 1H), 6.52 (m, 1H), 5.54 (s, 2H) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08497278B2
Source datasetuspto-grants-2013_07
ORD IDord-6f35248635b947108261e257cd3c2f9e
Source noteuspto-grants-2013_07