Phosphorus sulfide (P2S5) → 2-Methyl-8-cyano-5,6,7,8-tetrahydroquinoline
Reaktionsgleichung
[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[CH2:8][CH2:7][CH2:6][CH:5]([C:12]([NH2:14])=O)[C:4]=2[N:3]=1.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=S>>[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[CH2:8][CH2:7][CH2:6][CH:5]([C:12]#[N:14])[C:4]=2[N:3]=1Komponenten
3
Versuchsvorschrift
2-Methyl-5,6,7,8-tetrahydroquinoline-8-carboxamide was treated with P2S5 to give 2-methyl-8-cyano-5,6,7,8-tetrahydroquinoline which was treated with H2S (both reactions being carried out by the method described in Example 8 to give the title compound as colourless needles from ethylacetate (28%) m.p. 98° (Found: C, 64.32; H, 6.93; N, 13.52%, C11H14N2S requires: C, 64.04; H, 6.84; N, 13.58%).
Quellen und Nachweise
- ORD-Eintrag
- ord-6bfcb8a660fa46ba88e5cc23b601362f
- Quelldatensatz
- uspto-grants-1977_06
- Patentnummer
- US04031102
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