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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911092Generated: October 30, 2026

Ethanol → HCID 86634793, compound

https://huagongshe.com/reaction/911092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
ReactantSodium BicarbonateHCID 516892—
Reactant5-(2-Chloropyridin-4-yloxy)-4,6-dimethylnicotinic acidHCID 86634792—
SolventBenzeneHCID 241—
ProductHCID 86634793HCID 8663479367%

Reaction Steps

A three necked round bottom flask containing 5-(2-chloropyridin-4-yloxy)-4,6-dimethylnicotinic acid (11.7 g, 42.0 mmol) was charged with ethanol (250 mL), benzene (300 mL) and sulphuric acid (10 mL). The flask was fitted with Dean Stark apparatus and the reaction stirred at reflux overnight. The solution was cooled and carefully neutralized with saturated NaHCO3 solution. The material was extracted with EtOAc, dried, and concentrated to afford ethyl 5-(2-chloropyridin-4-yloxy)-4,6-dimethylnicotinate (8.6 g, 67%) as an oil which solidified to a white solid upon standing in a refrigerator (4° C.) overnight.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022222B2
Source datasetuspto-grants-2011_09
ORD IDord-c62b4e56deda454bb08c81ce009dad0b
Source noteuspto-grants-2011_09