HuagongsheHuagongshe Chemistry Print Report · For research reference only
o-Toluenesulfonyl chloride → 5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-{1-[(2-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | o-Toluenesulfonyl chloride | HCID 8623 | — |
| Reactant | 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride | HCID 66616406 | — |
| Product | 5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-{1-[(2-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one | HCID 46202394 | — |
Reaction Steps
The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B1*HCl) and 2-methylbenzenesulfonyl chloride as starting compounds. The crude product is purified by crystallization from methanol to yield the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09340522B2 |
| Source dataset | uspto-grants-2016_05 |
| ORD ID | ord-25b21c802ac944dea1dd9b43e2775616 |
| Source note | uspto-grants-2016_05 |