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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Published in | RSC advances Vol. 6; no. 60; pp. 55643 - 55649 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
2016
|
Online Access | Get full text |
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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. |
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ISSN: | 2046-2069 2046-2069 |
DOI: | 10.1039/C6RA07998A |