Mechanism of C−F Reductive Elimination from Palladium(IV) Fluorides
作者:Takeru Furuya、Diego Benitez、Ekaterina Tkatchouk、Alexandra E. Strom、Pingping Tang、William A. Goddard、Tobias Ritter
DOI:10.1021/ja909371t
日期:2010.3.24
mechanism study of C-F reductiveeliminationfrom a transition metal complex is described. C-F bond formation from three different Pd(IV) fluoride complexes was mechanistically evaluated. The experimental data suggest that reductiveelimination occurs from cationic Pd(IV) fluoride complexes via a dissociative mechanism. The ancillary pyridyl-sulfonamide ligand plays a crucial role for C-F reductive elimination
<i>N</i>-Heterocyclization of Naphthylamines with 1,2- and 1,3-Diols Catalyzed by an Iridium Chloride/BINAP System
作者:Hiroomi Aramoto、Yasushi Obora、Yasutaka Ishii
DOI:10.1021/jo801966u
日期:2009.1.16
Benzoquinoline derivatives were successfully synthesized by iridium-catalyzed N-heterocyclization of naphthylamines with diols. For instance, the reaction of 1-naphthylamine with 1,3-propanediol catalyzed by IrCl3 combined with BINAP as a ligand produced 7,8-benzoquinoline in quantitative yield. The N-heterocyclization reaction was found to be markedly influenced by the ligands employed. Benzoindoles were also synthesized by the same strategy from napthylamines with 1,2-diols. A reaction mechanism for the N-heterocyclization of naphthylamines with 1,3-diols by IrCl3 was proposed.