Phosphotungstic salt used as an efficient catalyst to rapidly remove RhB from water solution

Palladium-catalyzed thiocarbonylation of alkenes toward branched thioesters using CO2

“…Phosphine ligands with a carbazolyl motif have been successfully used in many palladium-catalyzed biaryl syntheses and direct C–H bond arylation processes. 27 The sp 3 -hybridized N offers weak coordination to the palladium center whenever needed during the catalytic cycle and potentially increases the catalyst longevity, while the flattened carbazolyl bottom ring takes advantage of the extended flat-wall-like rigidity and facilitates the reductive elimination process. Herein, we developed palladium-catalyzed thiocarbonylation of alkenes for the preparation of thioesters by using CO 2 as the carbonyl source in the presence of hydrosilane as a reductant.…”