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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 6177Generated: October 25, 2026

Ammonia → HCID 19079121, compound

https://huagongshe.com/reaction/6177

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantWaterHCID 962—
ReactantSodium borohydrideHCID 4311764—
Reactant4-(3-Hydroxyisoindolin-1-on-2-ylmethylthio)pyridineHCID 19079166—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 19079121HCID 1907912154.6%

Reaction Steps

To a solution of 681 mg (2.5 mmol) of 4-[(3-hydroxyisoindolin-1-on-2-yl)methylthio]pyridine in 6 ml of trifluoroacetic acid, 0.30 g (7.93 mmol) of sodium borohydride was added in small portions, and the mixture was stirred for 15 minutes. The reaction mixture was poured into cold water and aqueous ammonia was added to make the mixture basic, followed by extraction with methylene chloride. The extract was dried over anhydrous magnesium sulfate and the solvent was distilled off. The residue was purified by recrystallization (solvent: ethyl acetate) to give 350 mg of the desired product (54.6% yield, colorless columns), mp. 131°-132° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05246948
Source datasetuspto-grants-1993_09
ORD IDord-bcf7a1386a3647debe56a5b796b263a1
Source noteuspto-grants-1993_09