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。

    Process for the continuous preparation of diacetyl ethylene diamine
    2.
    发明授权
    Process for the continuous preparation of diacetyl ethylene diamine 失效
    连续制备二乙酰基乙二胺的方法

    公开(公告)号:US4324911A

    公开(公告)日:1982-04-13

    申请号:US194751

    申请日:1980-10-07

    申请人: Werner Wellbrock

    发明人: Werner Wellbrock

    CPC分类号: C07C231/02

    摘要: A process for the continuous preparation of diacetyl ethylene diamine, w hich comprises allowing a mixture of ethylene diamine and acetic acid to react in a low-temperature zone at a temperature of about 80.degree. to 140.degree. C., completing the reaction of the mixture in a subsequent high-temperature zone of from about 140.degree. to 215.degree. C., discharging the diacetyl ethylene diamine obtained at the end of the high-temperature zone and stripping the reaction water in countercurrent flow by an inert gas at a point located between the low-temperature and the high-temperature zone.

    摘要翻译: 一种连续制备二乙酰基乙二胺的方法,包括使乙二胺和乙酸的混合物在低温区在约80-140℃的温度下反应,完成混合物的反应 在随后的约140℃至215℃的高温区域中,排出在高温区末端获得的二乙酰基乙二胺,并通过惰性气体在逆流中以位于 低温和高温区。

    Continuous process for the production of acyloxybenzenesulfonic acids
    3.
    发明授权
    Continuous process for the production of acyloxybenzenesulfonic acids 失效
    用于生产酰氧基苯磺酸的连续方法

    公开(公告)号:US4803015A

    公开(公告)日:1989-02-07

    申请号:US922275

    申请日:1986-10-23

    CPC分类号: C07C309/00

    摘要: A process for the continuous production of C.sub.7 -Cl.sub.2 -acyloxybenzenesulfonic acids, wherein phenol and a sulfonating reagent, diluted with an aliphatic C.sub.7 -Cl.sub.2 -carboxylic acid, is charged to the top of a continuous-flow reactor heated to 80.degree.-100.degree. and the mixture of phenolsulfonic acid and the aliphatic carboxylic acid, leaving the bottom end of this continuous-flow reactor, and a chlorinating reagent are charged to the top of a second continuous-flow reactor, nitrogen being passed in counter-current through both continuous-flow reactors.

    摘要翻译: 将连续生产C7-Cl2-酰氧基苯磺酸的方法,其中将用脂肪族C 7 -C 12羧酸稀释的苯酚和磺化试剂装入加热至80℃-100℃的连续流动反应器的顶部 并将留下该连续流动反应器的底端的苯酚磺酸和脂族羧酸的混合物和氯化试剂装入第二连续流动反应器的顶部,使氮气逆流通过两个连续流 流反应堆。