20776-08-3Relevant academic research and scientific papers
METHOD FOR THE PRODUCTION OF 4,4'-[1-TRIFLUOROMETHYL)ALKYLIDENE]-BIS-(2,6-DIPHENYLPHENOLS)
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Page/Page column 10, (2010/12/29)
The present invention relates to a process for preparing 4,4′-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4′-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.
Intramolecular Arene Hydrogenation at Niobium Metal Centres: Stereochemical Consequences
Steffey, Bryan D.,Rothwell, Ian P.
, p. 213 - 215 (2007/10/02)
Selective hydrogenation of 2,6-diphenylphenoxide to 2,6-dicyclohexylphenoxide ligands takes place at niobium(v) metal centres.
