Oh my Gold! Gold atoms stabilise catalytically active palladiumnanoparticles when engaged in an alloy heterogenised on carbon. The increased durability makes the Pd–Au/C catalyst more recyclable than the gold‐free Pd/C catalyst for the Sonogashirareaction.
Potassium thiocyanate acts as an efficient sulfur surrogate in C-S cross-coupling reactions mediated by recyclable copperoxidenanoparticles under ligand free conditions. This protocol avoids foul smelling thiols, for the synthesis of a variety of symmetrical diaryl sulfides, via the cross-coupling of different aryl halides with potassium thiocyanate, affording corresponding products in moderate to
Disclosed are N-[(1R,4S,6R)-3-(2-pyridinylcarbonyl)-3-azabicyclo[4.1.0]hept-4-yl]methyl}-2-heteroarylamine derivatives and their use as pharmaceuticals.
as natural products, pharmaceuticals, and π-conjugated systems are at the heart of constructing and modifying organic molecules, whereby the selectivity and predictability are of the utmost importance. Herein, we report the highly C3-selective C–H borylation of strychnine along with olefin isomerization, catalyzed by an iridium complex with a diphosphine ligand. This method enabled us to rapidly produce
Synthesis of Chemically and Configurationally Stable Monofluoro Acylboronates: Effect of Ligand Structure on their Formation, Properties, and Reactivities
作者:Hidetoshi Noda、Jeffrey W. Bode
DOI:10.1021/jacs.5b00822
日期:2015.3.25
tetravalent, configurationally stable B-chiral acylboronates. Significantly, the ligands on the boronate allow for fine-tuning of the properties and reactivity of acylboronates. In amide-formingligation with hydroxylamines under aqueous conditions, a considerable difference in reactivity was observed as a function of ligand structure. The solid-state structures suggested that subtle steric and conformational