HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 520934Generated: October 26, 2026
Hydrazine hydrate (1:1) → 4-Amino-3-sulfanylbenzonitrile
https://huagongshe.com/reaction/520934
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Benzothiazole-6-carbonitrile | HCID 10607144 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 4-Amino-3-sulfanylbenzonitrile | HCID 15543936 | 97.2% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09328067B2 |
|---|
| Source dataset | uspto-grants-2016_05 |
|---|
| ORD ID | ord-7503f76119814f38ac484f6e792606ad |
|---|
| Source note | uspto-grants-2016_05 |
|---|