Synergistic N‐Heterocyclic Carbene/Palladium‐Catalyzed Umpolung 1,4‐Addition of Aryl Iodides to Enals
作者:Wenjun Yang、Bo Ling、Bowen Hu、Haolin Yin、Jianyou Mao、Patrick J. Walsh
DOI:10.1002/anie.201912584
日期:2020.1.2
promoted by cooperative (terpy)Pd/NHC catalysis was developed that generates various bioactive β,β-diaryl propanoate derivatives. This system is not only the first reported palladium-catalyzed arylation of NHC-bound homoenolates but also expands the scope of NHC-induced umpolung transformations. A diverse array of functional groups such as esters, nitriles, alcohols, and heterocycles are tolerated under
Chiral olefin–sulfoxide as ligands for rhodium-catalyzed asymmetric conjugate addition of arylboronic acids to unsaturated esters
作者:Feng Xue、Dongping Wang、Xincheng Li、Boshun Wan
DOI:10.1039/c3ob41342j
日期:——
An efficient rhodium/olefin–sulfoxide catalyzed asymmetricconjugate addition of organoboronic acids to various unsaturatedesters has been developed, where 2-methoxy-1-naphthyl sulfinyl functionalized olefin ligands have been shown to be highly effective, and are especially applicable to unsaturated methyl esters with up to 99% yield and 91% ee.