Hydrochloric Acid → 1,4,7-Triazacyclononane-N,N',N''-triacetic acid
反応式
[NH:1]1[CH2:9][CH2:8][NH:7][CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.Cl[CH2:11][C:12]([O-:14])=[O:13].[Na+].Cl>>[C:12]([CH2:11][N:1]1[CH2:9][CH2:8][N:7]([CH2:11][C:12]([OH:14])=[O:13])[CH2:6][CH2:5][N:4]([CH2:11][C:12]([OH:14])=[O:13])[CH2:3][CH2:2]1)([OH:14])=[O:13]参加物
4
反応条件
- 温度
- 80 °C
実験手順
To an aqueous solution of TACN (0.16 mols in 58 mL water) is added an aqueous solution of sodium chloroacetate (0.71 mols sodium chloroacetate in 68 mL of water). This solution is stirred at 80° C. overnight while maintaining the pH at 9-10. After cooling to ambient temperature the pH of the solution is adjusted to 2.5 with aqueous HCl. The resulting precipitate is collected by filtration, washed with acetone, and dried in vacuo to afford the mono-hydrochloride salt of 1,4,7-tricarboxymethyl-1,4,7-triazacyclononane.