2-nitromethylenetetrahydro-2H-1,3-thiazine → 2-(5,6-Dihydro-4H-1,3-thiazin-2-yl)-N,N-dimethyl-2-nitroethen-1-amine
Reaktionsgleichung
[N+:1]([CH:4]=[C:5]1[NH:10][CH2:9][CH2:8][CH2:7][S:6]1)([O-:3])=[O:2].CO[CH:13](OC)[N:14]([CH3:16])[CH3:15]>C(Cl)(Cl)Cl>[S:6]1[CH2:7][CH2:8][CH2:9][N:10]=[C:5]1[C:4]([N+:1]([O-:3])=[O:2])=[CH:13][N:14]([CH3:16])[CH3:15]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
8.0 G OF TETRAHYDRO-2-(NITROMETHYLENE)-2H-1,3-thiazine, prepared as described in Example 2 of Ser. No. 554,361, 5.95 g of N,N-dimethylformamide dimethyl acetal and 25 ml of chloroform were mixed and the mixture was refluxed for about 16 hours. The solvent then was evaporated under reduced pressure to leave a dark orange solid. Recrystallization from ethyl acetate and methanol gave (1), as a light orange solid, m.p.: 168.5°-170°.