FIELD: chemical industry.
SUBSTANCE: invention relates to a method for producing quinolines (quinoline, 2- and 4-methylquinolines), which consists in the interaction of ethylene glycol with aniline in the presence of granular zeolite ZnCl 2 / H-ZSM-5mmm of a high degree of crystallinity, having a hierarchical (micro-meso-macroporous) structure, at 280-400 °C, atmospheric pressure, volumetric velocity feed of raw materials (w) 1-5 h-1, molar ratio of aniline:ethylene glycol equal to 1:2-3, ethylene glycol is fed into the reactor as a 20% solution in ethanol.
EFFECT: present invention provides a method for the production of quinolines (quinoline, 2- and 4-methylquinolines), which enables to synthesize 2- and 4-methylquinolines, quinoline efficiently, with high aniline conversion.
1 cl, 6 ex, 1 tbl
Title | Year | Author | Number |
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METHOD FOR OBTAINING QUINOLINES IN THE PRESENCE OF HIERARCHICAL ZEOLITE H-ZSM-5mmm | 2021 |
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Authors
Dates
2022-12-26—Published
2022-01-25—Filed