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Updated: Jun 18, 2025
Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
Published on: August 17, 2019
Titanium tetrafluoride catalysis for the dehydrative conversion of diphenylmethanols to symmetric and unsymmetric
Aman G Singh1, Abdulkhaliq A Alawaed1, P Veeraraghavan Ramachandran1
1Department of Chemistry, Purdue University West Lafayette IN 47907 USA chandran@purdue.edu.
Abstract:
In contrast to the conversion of diphenylmethanol to the corresponding halides with an equivalent of titanium tetrachloride or -bromide, catalytic (50 mol%) titanium tetrafluoride converts benzhydrols in diethyl ether or dichloromethane to bis(benzhydryl) ethers within 0.5-1 h at room temperature. Cross ether formation with diphenylmethanols and primary aryl or aliphatic alcohols is achieved in the presence of 25 mol% TiF4 in refluxing toluene as solvent. A tentative mechanism involving a carbocation intermediate has been proposed.
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