[NH2:1][CH2:2][CH2:3][S:4][CH2:5][C:6]1[C:11]([O:12][CH3:13])=[CH:10][CH:9]=[CH:8][N:7]=1.[CH3:14][S:15][C:16](S(C)=O)=[CH:17][N+:18]([O-:20])=[O:19]>CO>[N+:18]([CH:17]=[C:16]([S:15][CH3:14])[NH:1][CH2:2][CH2:3][S:4][CH2:5][C:6]1[C:11]([O:12][CH3:13])=[CH:10][CH:9]=[CH:8][N:7]=1)([O-:20])=[O:19]A solution of 2-[2-aminoethylthiomethyl]-3-methoxypyridine (2.1 g) in methanol (33 ml) was added over 25 minutes to a stirred solution of 1-methylthio-1-methylsulphinyl-2-nitroethylene (2.1 g) in methanol (75 ml) at 30°. After standing for an hour the solution was concentrated to give a yellow-brown oil which was crystallised from ethanol/ether to yield 1-nitro-2-methylthio-2-[2-((3-methoxy-2-pyridyl)methylthio)ethylamino]ethylene (1.9 g), m.p. 87.5°-88.5°.
読み込み中…