Abstract
A novel synthetic route to 1,4-diarylfluorenone and 1,4-diarylfluorene is presented by starting with ninhydrin. The retro-Diels-Alder cycloaddition was employed as a key step to construct the target fluorenones, while a highly efficient reduction from 1,4-diarylfluorenones to 1,4-diarylfluorenes is developed by using of sodium sulfide nonahydrate as reductant. The final products are confirmed by 1H NMR, 13C NMR and mass spectrometry.
| Original language | English |
|---|---|
| Pages (from-to) | 2333-2341 |
| Number of pages | 9 |
| Journal | Heterocycles |
| Volume | 87 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2013 |