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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 967471Generated: November 2, 2026

Hydrochloric Acid → HCID 22052422, compound

https://huagongshe.com/reaction/967471

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 69652292HCID 69652292—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 22052422HCID 22052422—

Reaction Conditions

Temperature60 °C

Reaction Steps

0.21 g (0.47 mmol) of 4-Bromo-3-[2-(2,4-dichlorophenyl)-ethoxy]-5-ethoxy-benzoic acid ethyl ester was dissolved in 6 ml of dioxan. 6 ml of water and 2N aqueous NaOH was added to the solution to give a pH of 13. The reaction solution was heated at 60° C. for 4 h and stirred at room temperature for 16 h. The reaction solution was cooled to 0° C. and concentrated hydrochloric acid was added to give a pH of 1-2, whereupon the product precipitated from solution. The suspension was stirred for 30 min, then the product was filtered off and dried under reduced pressure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06953857B2
Source datasetuspto-grants-2005_10
ORD IDord-fffc1183d1224f88b3339750e0b11ef6
Source noteuspto-grants-2005_10