A method is described for the preparation of N-(carboxyalkyl)imides corresponding to the general formula (I)
by the reaction of cyclic anhydrides corresponding to the general formula (II)
with an α,ω-aminoalkylcarboxylic acid corresponding to the general formula (III)
H2N-A-COOH (III).
The method provides an industrially easily practicable synthesis, from inexpensive and easily available starting compounds, of N-(carboxyalkyl)imides possessing a terminal acid function and having alkyl chains containing 1 to 18 carbon atoms.
本发明描述了一种通过与通式(II)对应的环状酸酐反应制备与通式(I)对应的 N-(羧基烷基)
酰亚胺的方法
通式(II)对应的环状酸酐与α,ω-
氨基烷酸的反应
与通式 (III) 所对应的α,ω-
氨基烷基
羧酸的反应
H2N-A-COOH (III)。
该方法提供了一种工业上容易实现的合成方法,即从廉价易得的起始化合物中合成具有末端酸功能并具有含 1 至 18 个碳原子的烷基链的 N-(羧基烷基)
酰亚胺。