Acetamidine → N-((4-Amino-2-methyl-5-pyrimidinyl)methyl)formamide
Reaction equation
CO[CH:3]=[C:4]([CH2:7][NH:8][CH:9]=[O:10])[C:5]#[N:6].[C:11]([NH2:14])(=[NH:13])[CH3:12]>>[CH3:12][C:11]1[N:14]=[C:5]([NH2:6])[C:4]([CH2:7][NH:8][CH:9]=[O:10])=[CH:3][N:13]=1Participants
3
Procedure
The α-methoxymethylene-β-formylaminopropionitrile solution and the acetamidine solution are combined. The mixture is reacted at 25°C for 10 minutes. The reaction mixture is subjected to concentration at not higher than 40°C to give crystals. The produced crystals are washed with 50 parts by volume of ethanol, whereby 24.8 parts of 2-methyl-4-amino-5-formylaminomethylpyrimidine is obtained as crystals (Purity: 93 %). The ethanol washing is concentrated to give 16 parts of 2-methyl-4-amino-5-formylaminomethylpyrimidine as crystals (Purity: 47.5 %).
Workup
- customThe mixture is reacted at 25°C for 10 minutes
- concentrationThe reaction mixture is subjected to concentration at not higher than 40°C
- customto give crystals
- washThe produced crystals are washed with 50 parts by volume of ethanol, whereby 24.8 parts of 2-methyl-4-amino-5-formylaminomethylpyrimidine
- customis obtained as crystals (Purity: 93 %)
- concentrationThe ethanol washing is concentrated
Sources & evidence
- ORD record
- ord-ba9435c8b58f426881a6b2e81a6aeee9
- Source dataset
- uspto-grants-1976_05
- Patent number
- US03954756
Reaction notes
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