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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 640167Generated: October 26, 2026

Hydrochloric Acid → 3-(4-Bromo-pyrazol-1-yl)-pyridin-2-ylamine

https://huagongshe.com/reaction/640167

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantN-(3-(4-Bromo-pyrazol-1-yl)-pyridin-2-yl)-2,2-dimethyl-propionamideHCID 59255076—
Product3-(4-Bromo-pyrazol-1-yl)-pyridin-2-ylamineHCID 5925509072%

Reaction Conditions

Temperature105 °C

Reaction Steps

A mixture of N-(3-(4-bromo-pyrazol-1-yl)-pyridin-2-yl)-2,2-dimethyl-propionamide (380 mg, 1.2 mmol) described in Manufacturing Example 39-1-3 and aqueous 2.5 N hydrochloric acid solution (2 mL) was stirred overnight at 105° C. The reaction mixture was cooled to 0° C., and 5 N sodium hydroxide solution (1 mL) was added. The resulting solids were filtered to obtain the title compound (100 mg, 72%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07691882B2
Source datasetuspto-grants-2010_04
ORD IDord-8ce973b04d0b420aae551b31b31d006d
Source noteuspto-grants-2010_04