1 and formation of the triplet 4-thiomethoxyphenylium ion, as supported by DFT calculations. The cation is trapped by alkenes and, less efficiently, by benzene, resulting in new examples of the recently emerging arylation reactions by SN1 substitution of phenyl halides. The products from alkenes involve the phenoniumion as a further intermediate. The product distribution differs from the analogous
The present invention relates to modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”), compositions thereof, and methods therewith. The present invention also relates to methods of treating ABC transporter mediated diseases using such modulators.
Picolinamide Ligands: Nickel‐Catalyzed Reductive Cross‐Coupling of Aryl Bromides with Bromocyclopropane and Beyond
作者:Dongyang Han、Jie Sun、Jian Jin
DOI:10.1002/asia.202201132
日期:2023.1.17
The arylcyclopropane motif as the combination of aryl and cyclopropyl ring systems can be found in an increasing amount of approved and investigational drugs. Herein, we have developed a mild, efficient nickel-catalyzed reductive cross-coupling protocol, featuring a simple Ni(II) precatalyst, a novel picolinamide NN2 pincer ligand. Notably, the reaction is tolerant of a broad range of functionalities
芳基环丙烷基序作为芳基和环丙基环系统的组合,可以在越来越多的批准和研究药物中找到。在此,我们开发了一种温和、高效的镍催化还原交叉偶联方案,其特点是一种简单的 Ni(II) 预催化剂,一种新型吡啶酰胺 NN 2钳形配体。值得注意的是,该反应对包括游离胺在内的广泛功能具有耐受性。
Palladium-Catalyzed Cross-Coupling of Cyclopropylmagnesium Bromide with Aryl Bromides Mediated by Zinc Halide Additives
作者:Chutian Shu、Kanwar Sidhu、Li Zhang、Xiao-jun Wang、Dhileepkumar Krishnamurthy、Chris H. Senanayake
DOI:10.1021/jo100983c
日期:2010.10.1
The key Pd-catalyzed cross-coupling of arylbromides or triflates and cyclopropylmagnesium bromide in the presence of substoichiometric amounts of zinc bromide produces cyclopropyl arenes in good to excellent yields. The cross-coupling of other alkyl, cycloalkyl, and aryl Grignard reagents with arylbromides under the same conditions gives the corresponding substituted arenes in good yields.