HuagongsheHuagongshe Chemistry Print Report · For research reference only
N-Methylhydrazinecarbothioamide → N-Methyl-N-[3-[3-(methylamino)-1,2,4-triazolo[4,3-b]-pyridazin-6-yl]phenyl]propanamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | N-Methylhydrazinecarbothioamide | HCID 2723853 | — |
| Reactant | N-methyl-N-[3-(6-chloro-3-pyridazinyl)phenyl]propanamide | HCID 14280298 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | N-Methyl-N-[3-[3-(methylamino)-1,2,4-triazolo[4,3-b]-pyridazin-6-yl]phenyl]propanamide | HCID 15595694 | 16% |
Reaction Steps
A solution of 5.0 g of N-methyl-N-[3-(6-chloro-3-pyridazinyl)phenyl]propanamide and 3.8 g 4-methylthiosemicarbazide in 200 ml ethanol was refluxed for 18 hours. The mixture was then treated and the product chromatographed as described in Example 70. Recrystallization of the product from dichloromethane-hexane afforded 0.9 g yellow powder, mp 212°-213° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04654343 |
| Source dataset | uspto-grants-1987_03 |
| ORD ID | ord-91e8ad14a3ac4252a44a26dc3ae9ec3a |
| Source note | uspto-grants-1987_03 |