A series of acidic, iron-modified, folded-sheet mesoporous materials with different Si-to-Fe ratios has been investigated as catalysts for liquid phase acetylation of 1,2-dimethoxybenzene with acetic anhydride. The catalysts were synthesized by use of a microwave–hydrothermal (M–H) process and characterized by N2 adsorption measurements, X-ray diffraction, electron spin resonance (ESR), Mössbauer spectroscopy, and temperature-programmed desorption (TPD) of pyridine. The catalyst H–Fe–FSM-16 (M–H) (10) resulted in the best performance in acid-catalyzed acetylation of 1,2-dimethoxybenzene with acetic anhydride as acylating agent. The kinetics of acetylation of 1,2-dimethoxybenzene over these catalysts was also investigated.
Research on Chemical Intermediates – Springer Journals
Published: Jun 20, 2013
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