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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57828Generated: October 30, 2026

Anisole → 6-(5-ethyl-3-pyridyl)-1H-pyrazolo[4,3-c]pyridine

https://huagongshe.com/reaction/57828

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnisoleHCID 7519—
Reactant1,4-DioxaneHCID 31275—
Reactant2-[[6-(5-Ethyl-3-pyridyl)pyrazolo[4,3-c]pyridin-1-yl]methoxy]ethyl-trimethyl-silaneHCID 86707033—
SolventHydrochloric AcidHCID 313—
Product6-(5-ethyl-3-pyridyl)-1H-pyrazolo[4,3-c]pyridineHCID 86707034174.1%

Reaction Steps

A solution of 2-[[6-(5-ethyl-3-pyridyl)pyrazolo[4,3-c]pyridin-1-yl]methoxy]ethyl-trimethyl-silane (0.2456 mmol; 106.8 mg) and anisole (1.228 mmol; 133 mg; 0.134 ml) in hydrogen chloride, 4.0 M in 1,4-dioxane (20 mmol; 5 ml) was stirred at room temperature overnight. The mixture was concentrated to afford 6-(5-ethyl-3-pyridyl)-1H-pyrazolo[4,3-c]pyridine (˜95.9 mg), which was used without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434725B2
Source datasetuspto-grants-2016_09
ORD IDord-96f707140a3f498083b7d2e34fcf2110
Source noteuspto-grants-2016_09