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.
Distribution of Furamidine Analogues in Tumor Cells: Influence of the Number of Positive Charges
作者:Amélie Lansiaux、Laurent Dassonneville、Michaël Facompré、Arvind Kumar、Chad E. Stephens、Miroslav Bajic、Farial Tanious、W. David Wilson、David W. Boykin、Christian Bailly
DOI:10.1021/jm010539n
日期:2002.5.1
series of DNA binding cationic compounds related to the potent antiparasitic drug furamidine (DB75). The compounds tested bear a diphenylfuran or a phenylfuranbenzimidazole unfused aromatic core substituted with one or two amidine or imidazoline groups. The synthesis of five new compounds is reported. The B16 melanoma cell line was used to compare the capacities of mono-, bis-, and tetracations to enter