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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 61988Generated: November 1, 2026

Hydrochloric Acid → HCID 68701440, compound

https://huagongshe.com/reaction/61988

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 68700541HCID 68700541—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 68701440HCID 68701440—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a stirred solution of 3-methoxy-5-nitro-3′-(6-(trifluoromethyl)pyridin-2-yl)biphenyl-4-ol (0.288 g, 0.738 mmol) in 1,2-dichloroethane (10 mL) cooled in an ice-water bath was added aluminium chloride (0.123 g, 0.922 mmol) in one portion followed by pyridine 0.233 g, 2.95 mmol) dropwise. The resulting red suspension was stirred at 80° C. for two hours, then cooled to room temperature and poured onto cold 2 N aqueous hydrochloric acid (100 mL). The precipitate was filtered off, washed with water and dried to give 5-nitro-3′-(6-(trifluoromethyl)pyridin-2-yl)biphenyl-3,4-diol, 0.164 g, (59%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09446012B2
Source datasetuspto-grants-2016_09
ORD IDord-dbd5ec867e7d4f7aacc425976a5df944
Source noteuspto-grants-2016_09