3-Hydrazinopyridine → HCID 178479606, Verbindung

HRID 638245

Reaktionsgleichung

Reaktionsgleichung von HRID 638245
[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[N:9][CH:10]=2)[N:5]=[CH:4][C:3]=1[C:12]([O:14]CC)=O.[NH:17]([C:19]1[CH:20]=[N:21][CH:22]=[CH:23][CH:24]=1)[NH2:18]>CO>[ClH:1].[N:21]1[CH:22]=[CH:23][CH:24]=[C:19]([N:17]2[C:12](=[O:14])[C:3]3=[CH:4][NH:5][C:6]4[CH:7]=[CH:8][N:9]=[CH:10][C:11]=4[C:2]3=[N:18]2)[CH:20]=1

Komponenten

4

Versuchsvorschrift

A solution of 2.84 g of ethyl 4-chloro-1,6-naphthyridine-3-carboxylate and 1.35 g of 3-hydrazinopyridine in 36 ml of methanol is stirred at room temperature for 2.5 hours, then refluxed for 4.5 hours, then cooled in an ice bath and filtered. Collected solid is washed with methanol, then with ether to yield 2-(3-pyridyl)pyrazolo[4,3-c][1,6]naphthyridin-3-(5H)-one hydrochloride, m.p. 302°-305°.

Aufarbeitung

  1. temperaturerefluxed for 4.5 hours
  2. temperaturecooled in an ice bath
  3. filtrationfiltered
  4. customCollected solid
  5. washis washed with methanol

Quellen und Nachweise

ORD-Eintrag
ord-563f916753134b21b4bc2f43d4041847
Quelldatensatz
uspto-grants-1985_12
Patentnummer
US04560689

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