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Zur Synthese 14 C‐markierter Terphenyle
Author(s) -
Hafferl W.,
Fischer E.,
Juppe G.
Publication year - 1965
Publication title -
journal of labelled compounds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 47
eISSN - 1099-1344
pISSN - 0022-2135
DOI - 10.1002/jlcr.2590010302
Subject(s) - terphenyl , chemistry , cyclohexanone , yield (engineering) , palladium , cyclohexanol , medicinal chemistry , stereochemistry , organic chemistry , catalysis , materials science , metallurgy
Aryl‐substituted cyclohexanols were obtained by reacting 14 C‐labelled phenyllithium with 2‐ and 4‐phenylcyclohexanone, and 2‐and 4‐xenyllithium with 14 C‐labelled cyclohexanone. Heated with palladium charcoal, these yielded 14 C‐labelled terphenyls. 1, 2‐diphenylcyclohexanol stereo‐isomers were converted into diphenylcyclohexene in order to raise the yield prior to aromatisation. The following 14 C‐labelled compounds have so far been prepared by this method: o‐terphenyl‐(1, 2, 3, 4, 5, 6)‐ 14 C, p‐terphenyl‐(1, 2, 3, 4, 5, 6)‐ 14 C, o‐terphenyl‐1‐ 14 C and p ‐terphenyl‐1‐ 14 C.