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    • 6. 发明授权
    • Process for producing 1,2-substituted imidazoline compounds
    • 1,2-取代咪唑啉化合物的制备方法
    • US4709045A
    • 1987-11-24
    • US871651
    • 1986-06-06
    • Makoto KuboKoshiro SotoyaKazuhiko Okabe
    • Makoto KuboKoshiro SotoyaKazuhiko Okabe
    • C07D233/16C07D233/06C07D233/04
    • C07D233/06
    • A 1,2-substituted imidazoline compound having the formula (I): ##STR1## in which R2 is an alkyl or alkenyl group having 8 to 22 carbon atoms and n is 2 or 3, is produced by (1) feeding in a reactor a dialkylenetriamine (II) with a higher fatty acid of R2COOH or an ester thereof (III) at a molar ratio of the compound (III) to the compound (II) in the range of 1.5:1 to 1.8:1, (2) effecting the reaction at an internal temperature of 100.degree. to 250.degree. C. at a reduced pressure, (3) adding to the reaction mixture so that the above defined molar ratio in total may reach at least 2.0:1 and (4) continuing the reaction at an internal temperature of 100.degree. to 250.degree. C. at a reduced pressure. The reaction proceeds with a high yield of the product (I), without by-production to primary and second amines.
    • 具有式(I)的1,2-取代咪唑啉化合物:其中R2是具有8-22个碳原子的烷基或烯基,n为2或3的式(I)化合物是通过(1)进料 在反应器中,化合物(III)与化合物(II)的摩尔比在1.5:1至1.8:1的范围内具有R2COOH的高级脂肪酸或其酯(III)的二烷基三胺(II) (2)在减压下在内部温度为100-250℃下进行反应,(3)加入到反应混合物中,使得上述定义的摩尔比可以达到至少2.0:1,和(4 )在减压下在内温100℃至250℃下继续反应。 反应以高产率的产物(I)进行,而不会副产生到伯和仲胺。