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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2231227Generated: November 3, 2026

Bromine → HCID 54706820, compound

https://huagongshe.com/reaction/2231227

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant4-Hydroxy-1-phenyl-1,8-naphthyridin-2(1H)-oneHCID 54686473—
SolventDichloromethaneHCID 6344—
ProductHCID 54706820HCID 5470682065.4%

Reaction Steps

To a suspension of 4-hydroxy-1-phenyl-1,8-naphthyridin-2(1H)-one (1 g) in CH2Cl2 (20 mL) was added, dropwise and with stirring, a solution of bromine (0.7 g) in CH2Cl2 (5 mL). The mixture was stirred at room temperature overnight, after which time the product was filtered off, dried in air and recrystallized from acetonitrile to yield 0.87 g of the product, m.p. 280° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04782067
Source datasetuspto-grants-1988_11
ORD IDord-349daff9d6f24b6f8ea7d6192e95f3a4
Source noteuspto-grants-1988_11