Catalytic Reactions of Aromatic Amines Alkylation with Alcohols

A comparative study on aniline alkylation activity using methanol and dimethyl carbonate as the alkylating agents over Zn–Co–Fe ternary spinel systems

“…Alkylanilines such as N-methylaniline (NMA), N,N-dimethylaniline (NNDMA) and toluidines are important industrial chemicals that are used extensively as starting materials for the production of dyes, pharmaceuticals and explosives [1][2][3]. Owing to the numerous uses of these compounds, the demand for selective and active catalysts for the reaction has grown [4][5][6][7][8][9][10]. However, selective synthesis of NMA is difficult; many reported systems perform both mono-and di-methylation of aniline, leading to poor selectivity for NMA.…”

Synthesis, Characterization, and Catalytic Uses of Mg3(PO4)2/MgO Systems

“…These are important intermediates in the manufacture of dyes, plastics, and explosives. The gas-phase process was initially studied by Hill et al (12), who used Al 2 O 3 as catalyst and obtained a high aniline conversion (13). In recent years, this process has been investigated over various zeolites (14 -17).…”

Erratum

“…N-methylaniline is a useful substance as an intermediate for the production of synthetic dyes. The vapor phase methylation of aniline by methanol has been extensively studied [1][2][3][4][5][6]. However, the reaction usually accompanies the ring methylation, leading to the formation of toluidines [2,4,5], while studies on the selective N-methylation are rather scarce [1,3,5].…”

“…The vapor phase methylation of aniline by methanol has been extensively studied [1][2][3][4][5][6]. However, the reaction usually accompanies the ring methylation, leading to the formation of toluidines [2,4,5], while studies on the selective N-methylation are rather scarce [1,3,5]. Furthermore, in most of the cases, the N-methylation gives mainly N,N-dimethylaniline [1] and report on the selective N-monomethylation of aniline has been very limited.…”