N-Methylation of amines with methanol in a hydrogen free system on a combined Al 2 O 3 –mordenite catalyst

N -Methyl amines play a major role in the production of medicines, pesticides, surfactants and dyes. N -Methylation of primary or second amines with methanol is considered to be a green path for the synthesis of N -methyl amines and the catalyst is key. In this article, the combined Al 2 O 3 –morden...

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Bibliographic Details
Published inRSC advances Vol. 6; no. 60; pp. 55643 - 55649
Main Authors Su, Jiahui, Li, Xungang, Chen, Yunbin, Cui, Yuancun, Xu, Jingwei, Qian, Chao, Chen, Xinzhi
Format Journal Article
LanguageEnglish
Published 2016
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Summary:N -Methyl amines play a major role in the production of medicines, pesticides, surfactants and dyes. N -Methylation of primary or second amines with methanol is considered to be a green path for the synthesis of N -methyl amines and the catalyst is key. In this article, the combined Al 2 O 3 –mordenite catalyst (mass fraction of alumina is 40%) with good activity, selectivity, lifetime and stability was prepared for N -methylation of various amines with methanol in a hydrogen free system in a fixed bed reactor, and characterized by XRD, N 2 adsorption and NH 3 -TPD. Furthermore, the methanol adsorption was investigated by in situ FTIR, and the result indicated that methoxyl species may be the active species for the N -methylation of amines.
ISSN:2046-2069
2046-2069
DOI:10.1039/C6RA07998A