Transformation of 2-(trifluoromethyl)aniline over ion-exchanged montmorillonites: formation of a dimer and cyclic trimer
Source abstract
Abstract
Abstract The adsorption of 2-(trifluoromethyl)aniline (2TFMA) on the interlamellar surfaces of KSF, K-10, Cu 2+ -, Ni 2+ -, Fe 3+ - and Al 3+ -montmorillonites has been investigated. Structures of the dimer and cyclic trimer species, formed via condensation reactions, were determined using NMR and mass spectral data. The catalytic activity of montmorillonite was influenced by the specific cation present with the Ni 2+ -montmorillonite producing the largest number of transformation products. The highest yield of 2-{difluoro-[2′-(trifluoromethyl)anilino]methyl}aniline (dimer) was obtained for Al 3+ -montmorillonite. The Cu 2+ -montmorillonite demonstrated the greatest activity in producing a 12-membered ring compound, (2-CF 2 C 6 H 4 NH) 3 , and gave the highest ratio of trimer to dimer yields. The presence of residual water in the Al 3+ -montmorillonite allows conversion of some 2TFMA to a carboxylic acid.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Inorganic Fluorides and Related Compounds · Mesoporous Materials and Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
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