Singlet oxygen-mediated transformation of furans into aromatic nitrogen-containing polycycles in water
作者:Dimitris Kalaitzakis、Tamsyn Montagnon、Georgios I. Ioannou、Eirini Antonatou、Georgios Vassilikogiannakis
DOI:10.3998/ark.5550190.p008.973
日期:——
Using a sustainable, green and one-pot protocol, simple furans are transformed into complex aromatic nitrogen-bearing polycycles that are synthetically important. The reaction, which is performed in water, begins with the highly selective and mild photooxidation of the furan substrate with singlet oxygen.
All‐in‐one: A new and general one‐pot reaction sequence initiated by singlet oxygen that transforms simple furan substrates into complex nitrogen‐bearing aromaticpolycycles having all the structural features of a number of important natural products (for example, the erythrina alkaloids; see scheme, RB=rose Bengal) is reported. The reaction sequence itself uses mild conditions and has wide functional