Abstract
Porous Zr-based metal–organic frameworks (MOF-808 and MOF-808/H2SO4, UiO-66 and UiO-66-SO3H) were used as solid acid catalysts for N-formylation of aniline with formic acid (aniline/formic acid 1/2 mol/mol, 35 °C). The yield of N-formylaniline was demonstrated to depend on structure of active sites and decrease in the order: MOF-808/H2SO4 > MOF-808 > UiO-66-SO3H > UiO-66. The activity of Zr-MOFs was dependent on the key properties of solvent, i.e. polarity and basicity. The MOF-808/H2SO4 was found to be the best catalyst, resulting in the formation of N-formylaniline in 96% yield under solvent free conditions. Efficiencies of MOF-808 and MOF-808/H2SO4 were higher in comparison with H-ZSM-5, zeolite natrolite and zeolite heulandite.
| Original language | English |
|---|---|
| Pages (from-to) | 355-369 |
| Number of pages | 15 |
| Journal | Reaction Kinetics, Mechanisms and Catalysis |
| Volume | 133 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jun 2021 |
Keywords
- Aniline
- Brønsted acidity
- Formic acid
- Metal–organic framework
- N-formylation
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