FIELD: chemical or physical processes.
SUBSTANCE: invention relates to a method of producing nitrogen-containing camphor-based derivatives, in particular to a method of producing symmetric camphor-based diimines, which can be used as vulcanization accelerators for rubber mixtures based on general-purpose rubber. Method involves reacting camphor with an aliphatic diamine while boiling in the presence of a catalyst in a toluene medium with azeotropic distillation of water. Catalyst used is zinc carboxylate with molar ratio of camphor: diamine: zinc carboxylate equal to 2.6:1:0.2.
EFFECT: high output and shorter reaction time.
1 cl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
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SU1248532A3 |
| 2-PHENYL-2-METHYLAMINOETHOXY-1,7,7-TRIMETHYL-BICYCLO[2,2,1]HEPTANE, ITS OPTICALLY ACTIVE ISOMERS AND PHARMACEUTICALLY ACCEPTABLE SALTS FOR PHARMACEUTICAL COMPOSITIONS, METHODS OF THEIR SYNTHESIS (VERSIONS), PHARMACEUTICAL COMPOSITION AND METHOD OF ITS PREPARING | 1997 |
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| USING 1,7,7-TRIMETHYLBICYCLO[2,2,1]HEPTAN-2-YLIDENE-AMINOETHANOL AS INFLUENZA VIRUS REPRODUCTION INHIBITOR | 2013 |
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RU2756043C1 |
