HuagongsheHuagongshe Chemistry Print Report · For research reference only
1H-Pyrazole, 3,5-diphenyl- → 1-Methyl-3,5-diphenylpyrazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1H-Pyrazole, 3,5-diphenyl- | HCID 70840 | — |
| Reactant | Methyl sulfate(1-) | HCID 4694097 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 1-Methyl-3,5-diphenylpyrazole | HCID 140517 | 9,099% |
Reaction Steps
As in Example 2, a melt of 10 g (0.0455 mol) of 3,5-diphenylpyrazole and 0.051 g (0.000455 mol) of methyl sulfate was introduced and reacted over the course of 3 hours with 197.75 g (6.18 mol) of gaseous (vaporized at 160° C.) methanol. 9.7 g (86.7%) of 1-methyl-3,5-diphenylpyrazole were obtained, boiling point 190° C./3 mbar, with a content of 95.2% (GC).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05840913 |
| Source dataset | uspto-grants-1998_11 |
| ORD ID | ord-99e36d8a2d584b6698bbf3f0f957f199 |
| Source note | uspto-grants-1998_11 |