Hydrazine hydrate (1:1) → 2-[3-(5-Bromo-3-methylpyrid-2-yl)-propylamino]-3-amino-5-(pyrid-3-ylmethyl)pyridine

HRID 34930

Reaktionsgleichung

Reaktionsgleichung von HRID 34930
O.NN.[Br:4][C:5]1[CH:6]=[C:7]([CH3:31])[C:8]([CH2:11][CH2:12][CH2:13][NH:14][C:15]2[C:20]([N+:21]([O-])=O)=[CH:19][C:18]([CH2:24][C:25]3[CH:26]=[N:27][CH:28]=[CH:29][CH:30]=3)=[CH:17][N:16]=2)=[N:9][CH:10]=1>[Ni].CO.C(O)C>[Br:4][C:5]1[CH:6]=[C:7]([CH3:31])[C:8]([CH2:11][CH2:12][CH2:13][NH:14][C:15]2[C:20]([NH2:21])=[CH:19][C:18]([CH2:24][C:25]3[CH:26]=[N:27][CH:28]=[CH:29][CH:30]=3)=[CH:17][N:16]=2)=[N:9][CH:10]=1

Komponenten

6

Versuchsvorschrift

Hydrazine hydrate (5.3 ml in 25 ml methanol) was added dropwise over 25 minutes to a stirred and cooled suspension under nitrogen of 2-[3-(5-bromo-3-methylpyrid-2-yl)propylamino]-3-nitro-5-(pyrid-3-ylmethyl)pyridine (5.07 g) and Raney nickel (10 g) in methanol (600 ml) and ethanol (100 ml) keeping the temperature at 5°-10° C. Reaction was allowed to stir at 5° C. for a further 45 minutes. Raney nickel was filtered off and the filtrate was concentrated to dryness to give an oil which was re-evaporated with n-propanol giving the title compound, theoretical yield, crude product used directly in next reaction.

Aufarbeitung

  1. customat 5°-10° C
  2. customReaction
  3. stirringto stir at 5° C. for a further 45 minutes
  4. filtrationRaney nickel was filtered off
  5. concentrationthe filtrate was concentrated to dryness
  6. customto give an oil which
  7. customwas re-evaporated with n-propanol giving the title compound, theoretical yield, crude product
  8. customused directly in next reaction

Quellen und Nachweise

ORD-Eintrag
ord-24e22c8f9dcf4485aa3c784a45c563a5
Quelldatensatz
uspto-grants-1988_08
Patentnummer
US04764519

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