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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 587629Generated: October 30, 2026

Ethyl orthoformate → 8-Cyano-7-(4-phenylpiperidinyl)[1,2,4]triazolo[4,3-a]pyridine

https://huagongshe.com/reaction/587629

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthoformateHCID 31214—
Reactant[3-Cyano-4-(4-phenylpiperidinyl)pyridin-2-yl]-hydrazineHCID 66787505—
SolventO-XyleneHCID 7237—
Product8-Cyano-7-(4-phenylpiperidinyl)[1,2,4]triazolo[4,3-a]pyridineHCID 6678883190.1%

Reaction Steps

D7 (1 g, 3.409 mmol) and triethylorthoformate (7.577 g, 51.13 mmol) in xylene (25 ml) were heated in a sealed tube at 180° C. for 1 h. After cooling, the resulting mixture was concentrated in vacuo. The residue thus obtained was triturated with Et2O to yield compound D8 (0.932 g, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09226930B2
Source datasetuspto-grants-2016_01
ORD IDord-cb0830f865244359af3a3873767ab099
Source noteuspto-grants-2016_01