Process for the preparation of 2-substituted
1-(acylaminoalkyl)-2-imidazolines
    1.
    发明授权
    Process for the preparation of 2-substituted 1-(acylaminoalkyl)-2-imidazolines 失效
    2-取代的1-(酰基氨基烷基)-2-咪唑啉的制备方法

    公开(公告)号:US5041553A

    公开(公告)日:1991-08-20

    申请号:US584487

    申请日:1990-09-17

    CPC分类号: C07D233/16

    摘要: In the process for the preparation of 2-substituted 1-(acylaminoalkyl)-2-imidazolines of the general formula I ##STR1## wherein R denotes an alkylene radical and R.sup.1 denotes a fatty acid radical, for example, a fatty acid and a dialkylenetriamine are reacted in a molar ratio of (1.9 to 2.0): 1 in such a way that the dialkylenetriamine is initially introduced hot under an inert gas atmosphere and the fatty acid is metered in hot and the amido amine formation is subsequently completed by heating to temperatures from 140.degree. to 190.degree. C. and the cyclization to the compound of the formula I is subsequently carried out at an under-pressure of at least 50 mbar.

    摘要翻译: 在制备通式I(I)的2-取代的1-(酰氨基烷基)-2-咪唑啉的方法中,其中R表示亚烷基,R 1表示脂肪酸基,例如脂肪酸 和二亚乙基三胺以(1.9-2.0):1的摩尔比进行反应,使得二烷基三胺最初在惰性气体气氛下引入热,并且脂肪酸在热中计量,并且酰胺胺形成随后由 加热至140℃至190℃的温度,并且随后在至少50毫巴的压力下进行环化至式I化合物。