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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45838Generated: 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/45838

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 numberUS08541575B2
Source datasetuspto-grants-2013_09
ORD IDord-2ef14dda9f924c7ebc2f49c249a3d449
Source noteuspto-grants-2013_09