5‐iodouracil or 5‐iodouridine and a series of five‐membered heterocycles such as 1H‐pyrrole, furan, 2‐methylfuran, 1‐methyl‐1H‐pyrrole, thiophene, as well as benzene in MeCN/H2O with a Hg lamp, 5‐aryluracils and 5‐aryluridines were synthesized. The reaction proceeded smoothly without the requirement of adding any transition metals or ligands.
Synthesis of Arylated Nucleobases by Visible Light Photoredox Catalysis
作者:Andreas Graml、Indrajit Ghosh、Burkhard König
DOI:10.1021/acs.joc.7b00088
日期:2017.4.7
Arylated nucleobases were synthesized by visiblelight photocatalysis using rhodamine 6G as photoredox catalyst and N,N-diisopropylethylamine as sacrificial electron donor. The high redox potential of this catalyst system is achieved by a consecutive photoinduced electron transfer process (conPET) and allows the room temperature conversion of brominated and chlorinated nucleobases or nucleobase precursors