HuagongsheHuagongshe Chemistry Print Report · For research reference only
Thiosemicarbazide → N-Ethyl-N-[3-(3-amino-1,2,4-triazolo[4,3-b]pyridazin-6-yl)phenyl]propanamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Thiosemicarbazide | HCID 2723789 | — |
| Reactant | N-ethyl-N-[3-(6-chloro-3-pyridazinyl)phenyl]propanamide | HCID 14280299 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | N-Ethyl-N-[3-(3-amino-1,2,4-triazolo[4,3-b]pyridazin-6-yl)phenyl]propanamide | HCID 15595696 | 44.8% |
Reaction Steps
A solution of 5.0 g N-ethyl-N-[3-(6-chloro-3-pyridazinyl)phenyl]propanamide and 3.2 g thiosemicarbazide in 200 ml ethanol was refluxed for 18 hours. The mixture was treated and the product chromatographed as described for Example 70. Recrystalization of the product from dichloromethane-hexane afforded 2.4 g yellow crystals, mp 199°-200° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04767765 |
| Source dataset | uspto-grants-1988_08 |
| ORD ID | ord-2860d62b5c8c430fa9b9be9aaab6cc24 |
| Source note | uspto-grants-1988_08 |