Abstract: | Sinensetin was isolated from cold pressed orange peel oil and recrystallized from ethanol. All analytical spectra were recorded and are reproduced either in the main part or in the supporting information (www.chiuz.de). The NMR‐ and mass‐spectra have been interpreted and compared with theoretical calculations of the 13C chemical shifts. The project is a follow up of the book “Classics in Spectroscopy” by S. Berger und D. Sicker (Wiley‐VCH 2009). |