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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70427Generated: October 26, 2026

Hydrazine hydrate (1:1) → 4-Amino-3-sulfanylbenzonitrile

https://huagongshe.com/reaction/70427

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantBenzothiazole-6-carbonitrileHCID 10607144—
SolventEthanolHCID 702—
Product4-Amino-3-sulfanylbenzonitrileHCID 1554393697.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 6-cyanobenzothiazole (532 mg, 3.33 mmol) and hydrazine monohydrate (1.2 ml, 24.76 mmol) in EtOH (10 ml) was heated at 80° C. under N2 atmosphere for 2 hours. The solvent was evaporated, H2O was added to the residue, and the solution was adjusted to pH˜5-7 with AcOH. The resulting yellow precipitate was filtered and washed with H2O, dried under high vacuum to yield the title compound as yellow solid (486 mg, 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822530B2
Source datasetuspto-grants-2014_09
ORD IDord-472d36f42e8f4b9a91bbdac353302057
Source noteuspto-grants-2014_09