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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1843626Generated: October 26, 2026

Hydrochloric Acid → 4-[3-(3-aminophenyl)-1-(4-methoxybenzyl)-1H-pyrazol-4-yl]-N-tert-butyl-pyridin-2-amine

https://huagongshe.com/reaction/1843626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantN-tert-butyl-4-[3-{3-[(diphenylmethylidene)amino]phenyl}-1-(4-methoxybenzyl)-1H-pyrazol-4-yl]pyridin-2-amineHCID 86654336—
Solvent1,4-DioxaneHCID 31275—
Product4-[3-(3-aminophenyl)-1-(4-methoxybenzyl)-1H-pyrazol-4-yl]-N-tert-butyl-pyridin-2-amineHCID 6718401846.8%

Reaction Steps

120 mg (0.2 mmol) of N-tert-butyl-4-[3-{3-[(diphenylmethylidene)amino]phenyl}-1-(4-methoxybenzyl)-1H-pyrazol-4-yl]pyridin-2-amine were dissolved in 20 ml of 1,4-dioxane and 5 ml of HCl 4M in dioxane were added. After 4 hours the solvent was removed in vacuo and the residue dissolved in dichloromethane and washed with aqueous NaHCO3. The organic layer was dried over Na2SO4 and evaporated to give, after trituration with diethylether, 40 mg (46% yield) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946250B2
Source datasetuspto-grants-2015_02
ORD IDord-ee7a63c011d041d3ba6cb1d920dd776b
Source noteuspto-grants-2015_02