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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2301412Generated: October 30, 2026

Phosphorus trichloride → HCID 178522602, compound

https://huagongshe.com/reaction/2301412

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus trichlorideHCID 24387—
Reactant5-Bromo-8-hydroxyquinoline-7-carboxylic acidHCID 14534768—
Reactant2-Amino-5-(4-chlorophenyl)-4-thiazololHCID 18372726—
SolventWaterHCID 962—
ProductHCID 178522602HCID 17852260211.5%

Reaction Steps

A solution of 5-bromo-8-hydroxyquinoline-7-carboxylic acid (0.268 g) of Preparation 2 and 2-amino-5-(4-chlorophenyl)-4-hydroxy-1,3-thiazole (0.227 g) in 50 mL xylenes is heated to reflux. To this is added dropwise PCl3 (0.069 g). Refluxing is continued overnight. The reaction is then cooled and water is added to destroy excess PCl3. The resulting solid is collected, washed with water and dried. The crude product is recrystallized from HOAc to yield 0.055 g of the title product as an orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06500842B1
Source datasetuspto-grants-2002_12
ORD IDord-c9c5a140e83f4502babcfdf01816369b
Source noteuspto-grants-2002_12