Oxidative Addition to Palladium(0) Made Easy through Photoexcited-State Metal Catalysis: Experiment and Computation
作者:Rajesh Kancherla、Krishnamoorthy Muralirajan、Bholanath Maity、Chen Zhu、Patricia E. Krach、Luigi Cavallo、Magnus Rueping
DOI:10.1002/anie.201811439
日期:2019.3.11
conditions. Mechanistic investigations and density functional theory (DFT) studies suggest that a photoinduced inner‐sphere mechanism is operative in which a barrierless, single‐electron transfer oxidativeaddition of the alkyl halide to Pd0 is key for the efficient transformation.
Nickel-Catalyzed Decarbonylative Synthesis of Fluoroalkyl Thioethers
作者:Conor E. Brigham、Christian A. Malapit、Naish Lalloo、Melanie S. Sanford
DOI:10.1021/acscatal.0c02950
日期:2020.8.7
This report describes the development of a nickel-catalyzed decarbonylative reaction for the synthesis of fluoroalkyl thioethers (RFSR) from the corresponding thioesters. Readily available, inexpensive, and stable fluoroalkyl carboxylic acids (RFCO2H) serve as the fluoroalkyl (RF) source in this transformation. Stoichiometric organometallic studies reveal that RF–S bond-forming reductive elimination
本报告描述了镍催化脱羰反应的发展,用于从相应的硫酯合成氟烷基硫醚 (R F SR)。容易获得、便宜且稳定的氟代烷基羧酸 (R F CO 2 H) 作为该转化中的氟代烷基 (R F ) 源。化学计量有机金属研究表明,形成R F -S 键的还原消除是催化循环中的一个具有挑战性的步骤。这导致二苯基膦二茂铁被鉴定为该转化的最佳配体。最终,该方法应用于构建多种氟代烷基硫醚 (R F SR),其中 R = 芳基和烷基。
Biocatalytic reduction of α,β-unsaturated carboxylic acids to allylic alcohols
作者:Godwin A. Aleku、George W. Roberts、David Leys
DOI:10.1039/d0gc00867b
日期:——
enable reduction of α,β-unsaturatedcarboxylicacids to allylic alcohols and their saturated analogues. These compounds are prevalent scaffolds in many industrial chemicals and pharmaceuticals. A substrate profiling study of a carboxylicacid reductase (CAR) investigating unexplored substrate space, such as benzo-fused (hetero)aromatic carboxylicacids and α,β-unsaturatedcarboxylicacids, revealed broad
Stereoconvergent Synthesis of Monofluoroalkenes via Photoinduced Dual Decarboxylative Cross-Coupling of α-Fluoroacrylic Acids with Redox-Active Esters
作者:Xiao-Yu Lu、Ang Gao、Meng-Yuan Ge、Ze-Jie Xia、Qi-Le Liu、Ting-Hua Tao、Xiao-Mei Sun
DOI:10.1021/acs.joc.1c03088
日期:2022.4.1
Herein, a new strategy for the synthesis of monofluoroalkenes via employing α-fluoroacrylicacids and N-hydroxyphthalimide (NHPI) redox-active esters as coupling partners has been developed. This decarboxylative reaction enabled the formation of C(sp2)–C(sp3) bonds to provide a practical and efficient approach for the construction of a variety of monofluoroalkenes, which are key structural motifs in
Mining Plants for Bacterial Quorum Sensing Modulators
作者:Shimrit David、Aviad Mandabi、Shaked Uzi、Asaph Aharoni、Michael M. Meijler
DOI:10.1021/acschembio.7b00859
日期:2018.1.19
uses quorumsensing (QS) in order to regulate the transfer of DNA into the host plant genome, and this results in the induction of crown gall tumors. The deleterious results of these infections are widespread and affect many species of fruit and crops. In order to further our understanding of this process and to provide potential solutions, we evaluated a library of 3800 naturalproductsfrom plant