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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2396421Generated: October 28, 2026

Hydrochloric Acid → HCID 86749256, compound

https://huagongshe.com/reaction/2396421

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantBenzoylhydrazineHCID 11955—
SolventPyridineHCID 1049—
ProductHCID 86749256HCID 86749256141.7%

Reaction Conditions

Temperature0 °C

Reaction Steps

Benzhydrazide (4.08 g) was dissolved in pyridine (25 mL) and cooled on ice. Tosyl chloride (5.72 g) was added portionwise over 5 minutes. Stirring was maintained at 0° C. for 15 minutes. Stirring at room temperature for 18 hours was followed by pouring into dilute HCl (650 mL). The resultant precipitate was filtered off, washed with water, and recrystallized from hot ethanol/water to afford 6.76 g of product as fine white needles.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05492803
Source datasetuspto-grants-1996_02
ORD IDord-029dc9858edb40b682a88f4c83293ad4
Source noteuspto-grants-1996_02