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Alkylation of Hydroquinone with tert ‐Butyl Alcohol over Bis[(perfluoroalkyl)sulfonyl]imides Supported on MCM‐41
Author(s) -
Yuan YuBin,
Nie Jin,
Zhang ZhengBo,
Zhou SanYi
Publication year - 2006
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200690317
Subject(s) - chemistry , hydroquinone , sulfonyl , catalysis , alkylation , yield (engineering) , alcohol , tert butyl alcohol , alkyl , medicinal chemistry , nuclear chemistry , organic chemistry , fourier transform infrared spectroscopy , chemical engineering , materials science , engineering , metallurgy
Bis[(perfluoroalkyl)sulfonyl]imides [HN(SO 2 R f ) 2 , and R f represents the perfluorinated alkyl group] supported on MCM‐41 were synthesized and characterized by XRD, FTIR, SEM, TGA and N 2 ‐adsorption techniques. The supported catalysts, HN(SO 2 R f ) 2 /MCM‐41, were used as the catalysts for the tert ‐butylation of hydroquinone (HQ) with tert ‐butyl alcohol (TBA) in the liquid phase. A high yield (52.0%) of 2‐ tert ‐butyl hydroquinone (TBHQ) could be obtained in the presence of 5 mol% HN(SO 2 C 4 F 9 ) 2 /MCM‐41 under the optimized reaction conditions and the heterogeneous catalyst could be recycled at least 6 times without substantial loss of activity.