HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazinecarboxaldehyde → 3-methylbenzothiazol-2(3H)-one hydrazone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazinecarboxaldehyde | HCID 12229 | — |
| Reactant | Benzothiazolium, 3-methyl-2-(methylthio)-, 4-methylbenzenesulfonate (1:1) | HCID 41464 | — |
| Solvent | Water | HCID 962 | — |
| Product | 3-methylbenzothiazol-2(3H)-one hydrazone | HCID 14319 | — |
Reaction Steps
Into a flask equipped with a reflux condenser and magnetic stirrer is charged 50 ml water. Then 28.1 g (0.076 moles) 3-methyl-2-methylthiobenzothiazolium p-toluene sulfonate is dissolved with slight heating. A solution of 9.1 g (0.15 moles) formylhydrazine in 25 ml of water then is added and the mixture is heated at reflux for 15 minutes. The cooled suspension is made acidic until a clear solution results, then made basic. The product precipitates and is filtered, giving 9.1 g (66%), m.p. 134° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04233442 |
| Source dataset | uspto-grants-1980_11 |
| ORD ID | ord-ddf6340fa1db41a3aaf7dccd81bf8f7c |
| Source note | uspto-grants-1980_11 |