In this article, a photoredox protocol for the synthesis of furans via oxidative coupling of olefin generated in situ from cyclopropylketones with ketonic oxygen atom is presented. Moreover, bromination of furans in the presence of overstoichiometric oxidant has been achieved with high regioselectivity.
Access to 2,5-Diamidopyrroles and 2,5-Diamidofurans by Au(I)-Catalyzed Double Hydroamination or Hydration of 1,3-Diynes
作者:Søren Kramer、Julie L. H. Madsen、Mario Rottländer、Troels Skrydstrup
DOI:10.1021/ol1008685
日期:2010.6.18
A Au(I)-catalyzed hydroamination or hydration of 1,3-diynes to access 2,5-diamidopyrroles and 2,5-diamidofurans has been developed. This method can also be expanded to 2,5-disubstituted furans and 1,2,5-trisubstituted pyrroles including the formation of deuterated heterocycles and O-18-labeled furans.