Method of preparing N-ethyl-N-cyanoethyl aniline
The invention relates to a method for preparing N-ethide-N-cyanoethyl aniline, mainly comprising the following: (1) a step of condensation reaction, during which, aniline reacts with ethanol in the action of catalyst to generate N-ethyl aniline and N, N- diethylaniline which are separated through di...
Saved in:
Main Authors | , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
14.03.2012
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a method for preparing N-ethide-N-cyanoethyl aniline, mainly comprising the following: (1) a step of condensation reaction, during which, aniline reacts with ethanol in the action of catalyst to generate N-ethyl aniline and N, N- diethylaniline which are separated through distillation to produce pure N-ethyl aniline; (2) a step of addition reaction, during which, the pureN-ethyl aniline obtained in the step (1) reacts with acrylonitrile in the action of the catalyst to produce the N-ethide-N-cyanoethyl aniline; particularly, the condensation reaction is performed in the action of a binary catalyst formed by any two of phosphorus oxychloride, phosphorus trichloride, phosphorus pentachloride, phosphorus trichloride and inorganic acid, and the content of one composition of the binary catalyst is between 5 and 95 percent. In the preparing process, on the basis of the prior process, the binary catalyst is used in the condensation reaction; and the reaction selectivity is improved and the p |
---|---|
Bibliography: | Application Number: CN20081107104 |