preparation of N-methyl aniline from benzene
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1st Mar, 2020
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The reaction of nitrobenzene hydroalkylation with methanol forms N-methylaniline over oxide catalysts.
It has been shown that the reductive alkylation of nitrobenzene with methanol is preferable to conduct at a temperature of 250°C, a feed weight hourly space velocity of 1 to 2 h−1, a methanol: nitrobenzene molar ratio of 3 to 4, and hydrogen: nitrobenzene molar ratio of 3–6. It has been found that promotion of the copper-containing catalyst with chromium leads to enhancement of the catalyst activity and facilitates an increase in selectivity for N-methylaniline.
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