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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2387623Generated: November 1, 2026

p-Toluenesulfonic acid → HCID 86608776, compound

https://huagongshe.com/reaction/2387623

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantTrimethyl orthoformateHCID 9005—
ReactantHCID 86608777HCID 86608777—
ProductHCID 86608776HCID 8660877690%

Reaction Conditions

Temperature80 °C

Reaction Steps

2-(3-azidopropyl)-5-(2,5-difluorophenyl)-2-phenyl-1,3,4-thiadiazole-3(2H)-carbothiohydrazide (220 mg, 0.51 mmol) was dissolved in trimethyl-orthoformate (1.62 g, 15.2 mmol) with a few crystals of pTsOH (10 mg, 0.05 mmol), and heated to 80° C. for 20 minutes. The reaction mixture was then concentrated and purified by flash column chromatography, eluting with 4:1 (hexanes/ethyl acetate), to afford the desired product as a light yellow oil (202 mg, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268871B2
Source datasetuspto-grants-2012_09
ORD IDord-5bdec5ac58e642bf89265aef3f39f8c0
Source noteuspto-grants-2012_09