반응식
[CH3:1][C:2]([C:4]([C:9]1[CH:14]=[CH:13][N:12]=[CH:11][CH:10]=1)=[CH:5]OCC)=O.[C:15](#[N:19])[CH2:16][C:17]#[N:18].C([OH:22])C>>[CH3:1][C:2]1[NH:18][C:17](=[O:22])[C:16](=[CH:5][C:4]=1[C:9]1[CH:10]=[CH:11][N:12]=[CH:13][CH:14]=1)[C:15]#[N:19]참가 물질
4
실험 절차
Another aspect of the invention resides in the second step of the above process, that is, the reaction of said ketone of formula II with malononitrile in a lower-alkanol to produce 1,2-dihydro-6-R-2-oxo-5-PY-nicotinonitrile of formula III. In a preferred embodiment of this aspect, 2-ethoxy(or methoxy)-1-(4- or 3-pyridinyl)ethenyl methyl(or ethyl) ketone is reacted with malononitrile in ethanol to produce 1,2-dihydro-6-methyl(or ethyl)-5-[4(or 3)-pyridinyl]nicotinonitrile. In a particularly preferred embodiment, 2-ethoxy-1-(4-pyridinyl)ethenyl methyl ketone is refluxed with malononitrile in ethanol to produce 1,2-dihydro-6-methyl-2-oxo-5-(4-pyridinyl)nicotinonitrile.
출처 및 근거
- ORD 기록
- ord-c8d33068597f4a07ad5fd41b90c305dd
- 출처 데이터셋
- uspto-grants-1983_11
- 특허 번호
- US04413127
연결된 노트
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