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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1589721Generated: October 30, 2026

Hydrochloric Acid → HCID 135760568, compound

https://huagongshe.com/reaction/1589721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 19770589HCID 19770589—
SolventEthanolHCID 702—
ProductHCID 135760568HCID 13576056863.7%

Reaction Steps

0.90 g of 85%-potassium hydroxide was added to 40 ml of ethanol and heated to 60°-65° C. on an oil bath. Under stirring, 2.00 g (5.02 mM) of 2-(3-fluoro-4-acetoxyphenyl)-5-(4-hexylphenyl)-1,3,4-thiadiazole was added thereto. To the mixture, 1.20 ml of hydrochloric acid was added (pH=about 3) and then common salt was added, followed by stirring at room temperature to precipitate a crystal. The crystal was recovered by filtration, followed by recrystallization from a mixture solvent (acetone/ethyl acetate) to obtain 1.14 g of 2-(3-fluoro-4-hydroxyphenyl)-5-(4-hexylphenyl)- 1,3,4-thiadiazole (Yield: 63.7%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05200109
Source datasetuspto-grants-1993_04
ORD IDord-3b2b7ebefad74a8b84e1d5a7fa487fda
Source noteuspto-grants-1993_04