HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 526436Generated: October 26, 2026
Hydrochloric Acid → HCID 178492256, compound
https://huagongshe.com/reaction/526436
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 6-Hydrazinonicotinic acid | HCID 3782617 | — |
| Reactant | Ethyl 2-(4-cyano-2-methoxyphenyl)-3-(dimethylamino)acrylate | HCID 117601030 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Product | HCID 178492256 | HCID 178492256 | 73.3% |
Reaction Steps
Combined ethyl 2-(4-cyano-2-methoxyphenyl)-3-(dimethylamino)acrylate (1.427 g, 5.20 mmol), 6-hydrazinylnicotinic acid (0.664 g, 4.34 mmol), and HCl (4.34 mL, 4.34 mmol) in 2-propanol (21.7 mL) and stirred at room temperature for 8 hours to give a solid. The solid was collected by filtration and combined with Hunig's base (1.50 mL, 8.61 mmol) in 2-propanol (10 mL) and water (1 mL) and stirred for 32 hours at 50° C., then 10 mL of 1 N HCl was added and the reaction was filtered to give a solid. The solid was washed with 30 mL MeOH and 30 mL of ether and dried in vacuo to give the title compound (708 mg, 73.3%) as a beige solid. MS m/z [M+H]+ 337.3.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09345713B2 |
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| Source dataset | uspto-grants-2016_05 |
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| ORD ID | ord-520e36317e954ff09ae2c7bc352b1f2c |
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| Source note | uspto-grants-2016_05 |
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