HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 569778Generated: October 31, 2026
Potassium Carbonate → HCID 13887377, compound
https://huagongshe.com/reaction/569778
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Bromoethylamine hydrobromide | HCID 2774217 | — |
| Reactant | HCID 14099454 | HCID 14099454 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 13887377 | HCID 13887377 | 73.9% |
Reaction Steps
A mixture of 0.57 g of 4,5-dihydro-6-[4-(isothiocyano)phenyl]-3(2H)-pyridazinone, 0.51 g of 2-bromoethylamine hydrobromide and 0.34 g of anhydrous K2CO3 in 12 ml of DMF is heated at 80° C. for four hours. The reaction mixture is cooled, filtered, and the filtrate is concentrated under reduced pressure. The residue is treated with water, neutralized, and filtered to give 0.5 g of 6-[4-[(4,5-dihydro-2-thiazolyl)amino]phenyl]-4,5-dihydro-3(2H)-pyridazinone, mp 217°-218° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04734415 |
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| Source dataset | uspto-grants-1988_03 |
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| ORD ID | ord-464bcebeaeba465fbd740cb594dd27da |
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| Source note | uspto-grants-1988_03 |
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