University of Eastern Finland,Joensuu, Finland.
Chem Commun (Camb). 2011 Mar 7;47(9):2649-51. doi: 10.1039/c0cc05280a. Epub 2011 Jan 13.
Pyrogallarene shows concentration-dependent instability in dilute solutions resulting in elimination of two ketene molecules and formation of pyrogallarene lactones. This unexpected phenomenon, which is not observed with resorcinarenes, highlights the significance of the four hydroxyl groups at 2-position for the molecular characteristics of pyrogallarenes.
吡咯并[3,4-b]吡咯酮在稀溶液中表现出浓度依赖性的不稳定性，导致两个烯酮分子的消除和吡咯并[3,4-b]吡咯酮内酯的形成。这种意想不到的现象在间苯二酚型大环芳烃中观察不到，突出了 2 位的四个羟基对吡咯并[3,4-b]吡咯酮分子特性的重要性。
