THE CONVERSION OF N – METHYLANILINE AND N –, 2 – DIMETHYLANILINE BY USING DIFFERENT CATALYSTS

Aghayev Akbar Ali,Nasirova Irada Mammad,Musfatayeva Naila Abdulla,Shahtakhtinskaya Pari Turabkhan,Muradov Mahal Mayil

doi:10.24297/jac.v13i8.5743

Abstract

The catalytic conversion of N methylaniline and N, 2 dimethylaniline in the presence of Pd HSHM, CuFe2O4Â·Î³Â·Al2O3 and vanadium chromium aluminium (VChA) oxide systems has been investigated. The comparative analysis of the results of the conversion of three different feedstocks with VChA catalyst shows that the xylidines, especially 2,6 dimethylaniline is formed as a result of the methylation of aromatic amine because of the carbon in nucleus.

Highlights

The researches of the previous years prove that alkylates which is formed as a result of the reaction of aniline and 2 – methylaniline with methanol contain alkylation products due to carbon and nitrogen
Copper/iron catalyst shows high selectivity in o-isomer production. 2 – methyl aniline is formed with 52.5% selectivity from conversion of N – methylaniline whereas [2,6] – dimethylaniline is formed with 53.0% selectivity from conversion of N, 2 – dimethylaniline
The mole ratio of orto isomers (2 – methylaniline and [2, 6] – dimethylaniline) which is formed as a result of the isomerization of N – methylaniline and N, 2 – dimethylaniline in the presence of this catalyst, to the other isomers of toluidine and xylidine is 1:1

Summary

Introduction

The researches of the previous years prove that alkylates which is formed as a result of the reaction of aniline and 2 – methylaniline with methanol contain alkylation products due to carbon and nitrogen. The results of the conversions of N – methylaniline and N –, 2- dimethylaniline in the presence of these catalysts are given in table 1 and 2.

Results

Conclusion