S. Yuvaraj et al., N-ethylation of aniline with ethanol or diethyl carbonate over alkali and alkaline zeolites Y and beta, APP CATAL A, 176(1), 1999, pp. 111-117
Vapour phase ethylation of aniline was carried out over alkali and alkaline
earth exchanged zeolites Y and beta. Reaction conditions were optimised fo
r N-alkylation by varying reaction parameters like temperature, WHSV, mole
ratio and time on stream. Over all zeolites, N-alkylation is much higher th
an C-alkylation. Diethyl carbonate is a better N-alkylating agent than etha
nol. Among the catalysts studied, K beta is a good N-monoalkylating catalys
t with 41% aniline conversion and 100% selectivity at 473 K, WHSV 19.8 h(-1
) and diethyl carbonate/aniline ratio 2. (C) 1999 Elsevier Science B.V All
rights reserved.