Methanol → 4,6-Diaminonicotinonitrile
반응식
Br[C:2]1[N:7]=[C:6]([NH2:8])[CH:5]=[C:4]([NH2:9])[C:3]=1[C:10]#[N:11].[H][H].C([O-])(=O)C.[K+].CO>[Pd].O1CCCC1>[NH2:8][C:6]1[CH:5]=[C:4]([NH2:9])[C:3]([C:10]#[N:11])=[CH:2][N:7]=1참가 물질
7
실험 절차
A suspension of 21.3 g of 6-bromo-2,4-diamino-5-cyanopyridine (JACS, 80:2838-2840 (1958)) and 1 g of 20% palladium on charcoal in 250 mL of tetrahydrofuran was shaken in a Parr apparatus under an atmosphere hydrogen. After 2 hours, the reaction was stopped and 10 g of potassium acetate and 50 mL of methanol added. The reaction was recharged with hydrogen and shaken for 18 hours. The solvents were removed under reduced pressure and the residue crystallized from isopropyl alcohol to afford the title compound 2,4-diamino-5-cyanopyridine, mp 201-202° C.
후처리
- customThe solvents were removed under reduced pressure
- customthe residue crystallized from isopropyl alcohol
출처 및 근거
- ORD 기록
- ord-c68c356a278b4eea9c94eb125607496a
- 출처 데이터셋
- uspto-grants-1999_09
- 특허 번호
- US05952342
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