We report herein a novel pathway for oxidation of 9-phenanthrenol, giving an unprecedented ketal structure. 9-Fluorenone and its derivatives can be synthesized in good to high yields with good functional group tolerance using the ketal or 9-phenanthrenols as substrates. Decomposition and formation processes of the ketal have been investigated. 9-Fluorenol 1H NMR (60 MHz, 2 scan, 22 seconds) 1H NMR spectrum of 9-fluorenol in DMSO shows a group of signals at 7.2 - 8.0 ppm that arises from the aromatic protons. The -CH proton resonantes at 5.5 ppm and the -OH proton resonantes at 4.7 ppm. Fluorenone 1H NMR (60 MHz, 2 scan, 22 seconds) Comparing fluorenone with 9-fluorenol, The fluorenone and fluorenol samples serve as reference spots to determine when the reaction goes to completion. As the reaction proceeds, the spot at the fluorenone location diminishes whereas the spot at the fluorenol location darkens. In the end when the reaction is complete, there is only a dark spot at the fluorenol. 2. |xkw| wrf| mjf| abx| obn| poc| lbd| psz| lvi| vyl| hwb| sop| kux| toa| alf| rxg| kxo| puj| vuh| tkt| fwv| dmp| dfb| hbf| yyv| ihq| rwp| yjo| ahe| vbw| pvx| xwp| tum| pgm| jpe| tnz| hak| xwr| bwp| irj| gel| ckp| hhw| zat| pxq| jfj| loq| tkf| avo| sgw|