Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuryl chloride | HCID 24648 | — |
| Reactant | 5-Chloro-1,3-dimethylpyrazole-4-carboxaldehyde | HCID 2777397 | — |
| Solvent | 1,2-Dichlorobenzene | HCID 7239 | — |
| Product | HCID 12823255 | HCID 12823255 | — |
Reaction Steps
To 300 g of a 22.7% solution of 5-chloro-1,3-dimethyl-1H-pyrazole-4-carbaldehyde in 1,2-dichlorobenzene are added dropwise at 80° C. 58 g of sulphuryl chloride within 120 minutes. After the metered addition has ended, the reaction solution is stirred for a further 3 hours. The reaction solution is cooled to 20° C. and the solution is analyzed by GC. 4,5-Dichloro-1,3-dimethyl-1H-pyrazole has formed quantitatively.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07977494B2 |
|---|
| Source dataset | uspto-grants-2011_07 |
|---|
| ORD ID | ord-8ff86ebe0744455da78916c2961e5e05 |
|---|
| Source note | uspto-grants-2011_07 |
|---|
