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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1069504Generated: October 29, 2026

Phosphorus trichloride → HCID 178522602, compound

https://huagongshe.com/reaction/1069504

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 numberUS06252080B1
Source datasetuspto-grants-2001_06
ORD IDord-44e0cd1d5ba2414b9017de336a3ad5be
Source noteuspto-grants-2001_06