Tetrahydrofuran → HCID 178511612, Verbindung

Reaktionsgleichung

[N+:1]([C:4]1[CH:5]=[CH:6][C:7](Cl)=[N:8][CH:9]=1)([O-:3])=[O:2].[C@H:11]1([NH2:18])[CH2:16][CH2:15][C@H:14]([NH2:17])[CH2:13][CH2:12]1.O1CCCC1>C(O)C>[N+:1]([C:4]1[CH:5]=[CH:6][C:7]([NH:17][C@H:14]2[CH2:15][CH2:16][C@H:11]([NH2:18])[CH2:12][CH2:13]2)=[N:8][CH:9]=1)([O-:3])=[O:2]

Komponenten

Versuchsvorschrift

A solution of 5-nitro-2-chloropyridine (2.50 g) and trans-1,4-cyclohexanediamine (5.40 g) in ethanol (15 ml)-tetrahydrofuran (10 ml) was stirred at room temperature for 5 days. The precipitates were removed by filtration and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (solvent: chloroform-methanol-concentrated aqueous ammonia (20:4:1)) and crystallized from ethyl acetate to obtain N-(5-nitro-2-pyridyl)-trans-1,4-cyclohexanediamine (Reference Example 3-1 in Table 5).