HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methylhydrazine → 1-Methyl-3,5-diphenylpyrazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methylhydrazine | HCID 6061 | — |
| Reactant | Dibenzoylmethane | HCID 8433 | — |
| Reactant | Difenzoquat metilsulfate | HCID 39424 | — |
| Product | 1-Methyl-3,5-diphenylpyrazole | HCID 140517 | — |
Reaction Steps
The herbicidal 1,2-dimethyl-3,5-diphenylpyrazolium methyl sulfate may be prepared by condensing 1,3-diphenyl-1,3-propanedione with methylhydrazine to form 2-methyl-3,5-diphenylpyrazole, which is then methylated with dimethyl sulfate as described in U.S. Pat. No. 3,882,142, and illustrated in Flow Diagram I below:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04482745 |
| Source dataset | uspto-grants-1984_11 |
| ORD ID | ord-1bf4242a49e54619b8a7c98c29197c0e |
| Source note | uspto-grants-1984_11 |