3-(4-Nitrobenzyl)-5-(3,4-dimethoxyphenyl)-6-ethyl-3,6-dihydro-1,3,4-thiadiazin-2-one → 3-(4-Aminobenzyl)-5-(3,4-dimethoxyphenyl)-6-ethyl-3,6-dihydro-1,3,4-thiadiazin-2-one
Reaktionsgleichung
[N+:1]([C:4]1[CH:29]=[CH:28][C:7]([CH2:8][N:9]2[N:14]=[C:13]([C:15]3[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[C:17]([O:23][CH3:24])[CH:16]=3)[CH:12]([CH2:25][CH3:26])[S:11][C:10]2=[O:27])=[CH:6][CH:5]=1)([O-])=O>O1CCCC1.[Ni]>[NH2:1][C:4]1[CH:5]=[CH:6][C:7]([CH2:8][N:9]2[N:14]=[C:13]([C:15]3[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[C:17]([O:23][CH3:24])[CH:16]=3)[CH:12]([CH2:25][CH3:26])[S:11][C:10]2=[O:27])=[CH:28][CH:29]=1Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
A solution of 3.9 g of 3-(4-nitrobenzyl)-5-(3,4-dimethoxyphenyl)-6-ethyl-3,6-dihydro-1,3,4-thiadiazin-2-one in 40 ml of tetrahydrofuran is hydrogenated in the presence of Raney nickel. The catalyst is filtered off and the solution is concentrated. Recrystallization gives 3-(4-aminobenzyl)-5-(3,4-dimethoxyphenyl)-6-ethyl-3,6-dihydro-1,3,4-thiadiazin-2-one, m.p. 105°.
Aufarbeitung
- filtrationThe catalyst is filtered off
- concentrationthe solution is concentrated
- customRecrystallization
Quellen und Nachweise
- ORD-Eintrag
- ord-2cf32e2ab8c54e4db535ce4e272c9586
- Quelldatensatz
- uspto-grants-1998_05
- Patentnummer
- US05747489
Notizen zur Reaktion
Wird geladen…