โ Scribed by Kuhn, Richard ;Winterstein, Alfred
No coin nor oath required. For personal study only.
739 [19z.r]
. 6 , Hr. Prof. 0. G e r n g r o I3 hatte die Liebenswiirdigkeit, durch Bestirnmung des 6, Die Oxydation Ton I.~-l)iphenyl-benzol mit CrO, hat bereits G. S c h u l t z , Mkch-Schmelzpunktes unser Praparat mit dem seinen zu identifizieren.
๐ SIMILAR VOLUMES
Aryl-substituted cyclohexanols were obtained by reacting 1% labelled phenyllithium with 2-and 4-phenylcyclohexanone, and 2-and 4-xenyllithium with W-labelled cyclohexanone. Heated with palladium charcoal, these yielded 14C-labelled terphenyls. I,2diphenylcyclohexanol stereo-isomers were converted in
The synthesis underwent the followYng intermediate steps : reaction of cyclopentanon wlith KIJCN, reduction of the cyanhydrine formed with LiAIH4 to aminol, Demjanow ring enlargement to 2-labelled cyclohexanone, reaction with 2-xenyl-magnesiumiodide, dehydratization and aromatization of the carbinol
16 specific D-labelled Bi-and Terphenyls have been synthesized. The totally deuterated compounds have been prepared by isotopic exchange with DzO and Pt at temperatures higher than 200 QC in a pressure vessel. The comparison of partially exchanged compounds with the specific ones synthesized, and th