A Comparative Ancillary Ligand Survey in Palladium-Catalyzed C-O Cross-Coupling of Primary and Secondary Aliphatic Alcohols
作者:Ryan S. Sawatzky、Breanna K. V. Hargreaves、Mark Stradiotto
DOI:10.1002/ejoc.201600198
日期:2016.5
palladium-catalyzed C–O cross-coupling reactions involving aliphaticalcohols and (hetero)arylhalides under analogous conditions was examined, both at room temperature and at elevated temperature (90 °C). In general, the RockPhos-based catalyst system proved superior, especially at room temperature, but catalysts based on the other ligands examined also proved effective across a range of C–O cross-couplings, in some
Addressing Challenges in Palladium-Catalyzed Cross-Couplings of Aryl Mesylates: Monoarylation of Ketones and Primary Alkyl Amines
作者:Pamela G. Alsabeh、Mark Stradiotto
DOI:10.1002/anie.201303305
日期:2013.7.8
Mor(DalPhos) for Me(sylates): Described are the first examples of ketone mono‐α‐arylation and primary aliphatic aminemonoarylation employing aryl methanesulfonate coupling partners. A range of functionalized arylmesylates were employed with dialkyl ketones, and also with primary and secondary amines as well as the otherwise challenging coupling partners acetone and methylamine. Ad=adamantyl.