Formamide → 5-amino-1,3-dimethyl-1H,2H,3H,4H-[1,3]diazino[4,5-d]pyrimidine-2,4-dione

HRID 476913Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 476913
[NH2:1][C:2]1[N:7]([CH3:8])[C:6](=[O:9])[N:5]([CH3:10])[C:4](=[O:11])[C:3]=1[C:12]#[N:13].[CH:14]([NH2:16])=O>O>[NH2:13][C:12]1[N:16]=[CH:14][N:1]=[C:2]2[N:7]([CH3:8])[C:6](=[O:9])[N:5]([CH3:10])[C:4](=[O:11])[C:3]=12

Komponenten

4

Edukt 2

HCID 713FormamideHCID 13296989HCID 13296989, Verbindung

Produkt 1

HCID 124906845-amino-1,3-dimethyl-1H,2H,3H,4H-[1,3]diazino[4,5-d]pyrimidine-2,4-dioneAusbeute 58 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

0.3 g (1.7 mmol) of 6-amino-5-cyano-1,3-dimethyluracil was added to 2 ml of formamide followed by refluxing for 2 hours. 10 ml of water was added to the solution and the crystalline precipitate was filtered off. The crude product was recrystallized from methanol to give 0.2 g of 5-amino-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4-dione (compound 9) in a 58% yield.

Aufarbeitung

  1. temperatureby refluxing for 2 hours
  2. filtrationthe crystalline precipitate was filtered off
  3. customThe crude product was recrystallized from methanol

Quellen und Nachweise

ORD-Eintrag
ord-378c039ac0b149548c2c17594842b502
Quelldatensatz
uspto-grants-1989_12
Patentnummer
US04886807

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