Directed Markovnikov hydroarylation and hydroalkenylation of alkenes under nickel catalysis
作者:Zi-Qi Li、Omar Apolinar、Ruohan Deng、Keary M. Engle
DOI:10.1039/d1sc03121j
日期:——
Native Lewis basic functional groups enable the nickel-catalyzed Markovnikov-selective hydroarylation and hydroalkenylation of unactivated alkenes with organoboron reagents.
Dehydrogenative Allylic Aminations of But-3-enoic Acid Derivatives
作者:Daria Diamante、Sara Gabrieli、Tiziana Benincori、Gianluigi Broggini、Julie Oble、Giovanni Poli
DOI:10.1055/s-0035-1562453
日期:2016.10
but-3-enoic acid derivatives are reported. These transformations can be successfully achieved via either a direct Pd(II)-catalyzed protocol or by way of a one-potPd(II)/Pd(0)-catalyzed sequence, depending on the nature of the nitrogen nucleophile used. Two complementary Pd-catalyzed protocols enabling the γ-selective intermolecular allylic amination of but-3-enoic acid derivatives are reported. These
Nickel-Catalyzed 1,2-Diarylation of Simple Alkenyl Amides
作者:Joseph Derosa、Roman Kleinmans、Van T. Tran、Malkanthi K. Karunananda、Steven R. Wisniewski、Martin D. Eastgate、Keary M. Engle
DOI:10.1021/jacs.8b11942
日期:2018.12.26
A nickel-catalyzed conjunctive cross-coupling of simple alkenyl amides with aryl iodides and arylboronic esters is reported. The reaction is enabled by an electron-deficient olefin (EDO) ligand, dimethyl fumarate, and delivers the desired 1,2-diarylated products with excellent regiocontrol. Under optimized conditions, a wide range of amides derived from 3-butenoic acid, 4-pentenoic acid, and allyl
报道了简单烯基酰胺与芳基碘化物和芳基硼酸酯的镍催化连接交叉偶联。该反应由缺电子烯烃 (EDO) 配体富马酸二甲酯实现,并提供具有出色区域控制的所需 1,2-二芳基化产物。在优化条件下,衍生自 3-丁烯酸、4-戊烯酸和烯丙胺的多种酰胺都是相容的底物。该方法代表了由天然酰胺官能团引导的区域控制 1,2-二芳基化的第一个例子。计算分析揭示了潜在的底物结合模式和 EDO 配体在还原消除步骤中的作用。