Sodium Dithionite → 5,6-Diamino-3-propylpyrimidine-2,4(1H,3H)-dione

HRID 1246235ノート

反応式

HRID 1246235 の反応式
[NH2:1][C:2]1[NH:7][C:6](=[O:8])[N:5]([CH2:9][CH2:10][CH3:11])[C:4](=[O:12])[C:3]=1[N:13]=O.S(S([O-])=O)([O-])=O.[Na+].[Na+]>N>[NH2:13][C:3]1[C:4](=[O:12])[N:5]([CH2:9][CH2:10][CH3:11])[C:6](=[O:8])[NH:7][C:2]=1[NH2:1]

参加物

4

反応物 2

HCID 24489Sodium DithioniteHCID 144253236-Amino-5-nitroso-3-propylpyrimidine-2,4(1H,3H)-dione

生成物 1

HCID 109542025,6-Diamino-3-propylpyrimidine-2,4(1H,3H)-dione

試薬・触媒・溶媒 1

HCID 222Ammonia溶媒

反応条件

温度
5 °C

実験手順

To a solution of 6-amino-5-nitroso-3-propyl-1,3-dihydropyrimidine-2,4-dione (5.4 g, 27 mmol) in 12.5% aqueous ammonia (135 ml) at 70° C. was added sodium dithionite (Na2S2O4, 9.45 g, 54 mmol) in portions over 15 minutes, and the mixture was stirred for 20 minutes. The solution was concentrated under reduced pressure, cooled to 5° C., the precipitate filtered off, and washed with cold water, to provide 5,6-diamino-3-propyl-1,3-dihydropyrimidine-2,4-dione, a compound of formula (12).

後処理

  1. concentrationThe solution was concentrated under reduced pressure
  2. filtrationthe precipitate filtered off
  3. washwashed with cold water

出典と根拠

ORDレコード
ord-9df93f57d9e3402fb16290214eb87b4f
出典データセット
uspto-grants-2006_10
特許番号
US07125993B2

反応ノート

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