Now showing items 1-3 of 3
Ligand-to-metal ratio controls stereoselectivity: Highly functional-group-tolerant, iridium-based, (E)-selective alkyne transfer semihydrogenation
Herein, we present (E)-selective transfer semihydrogenation of al kynes based on an iridium complex in situ generated from [Ir(COD)Cl]2 and an unsymmetrical (bearing two different phosphorous cen ters), ferrocene-based ...
Tandem Pd-Catalyzed Cyclization/Coupling of Non-Terminal Acetylenic Activated Methylenes with (Hetero)Aryl Bromides
We report a new method for a tandem Pd-catalyzed intramolecular addition of active methylene compounds to internal alkynes followed by coupling with aryl and heteroaryl bromides. Highly substituted vinylidenecyclopentanes ...
Unprecedented 1,2-Aryl Shift Accompanying Double Alkyne Benzannulation
The tandem intramolecular hydroarylation of alkynes accompanied by a 1,2-aryl shift is described. Harnessing the unique electron-rich character of 1,4-dihydropyrrolo[3,2-b]pyrrole scaffold, we demonstrate that the ...