Dirhodium Carboxylate Catalysts from 2‐Fenchyloxy or 2‐Menthyloxy Arylacetic Acids: Enantioselective C−H Insertion, Aromatic Addition and Oxonium Ylide Formation/Rearrangement
作者:Aoife M. Buckley、Daniel C. Crowley、Thomas A. Brouder、Alan Ford、U. B. Rao Khandavilli、Simon E. Lawrence、Anita R. Maguire
DOI:10.1002/cctc.202100924
日期:2021.10.19
A new class of rhodiumcarboxylate complexes, which contain phenylacetate ligands substituted with bulky chiral alkoxy substituents, has been prepared, and the application of these complexes in some representative carbene transfer processes of α-diazocarbonyl compounds is described. Good enantioselectivity is obtained across a range of transformations.
Investigation of Additive Effects in Enantioselective Copper-Catalysed C-H Insertion and Aromatic Addition Reactions of α-Diazocarbonyl Compounds
作者:Anita Maguire、Catherine Slattery、Leslie-Ann Clarke、Shane O'Neill、Aoife Ring、Alan Ford
DOI:10.1055/s-0031-1290598
日期:2012.3
Irish Research Council for Science, Engineering and Technology (Programme for Research in Third Level Institutions Cycle 4); Eli Lilly and Company, United States
爱尔兰科学、工程和技术研究委员会(第三级机构研究计划周期 4);美国礼来公司
Catalyst, additive and counterion effects on the efficiency and enantioselectivity of copper-catalysed C–H insertion reactions of α-diazosulfones
作者:Catherine N. Slattery、Leslie-Ann Clarke、Alan Ford、Anita R. Maguire
DOI:10.1016/j.tet.2012.12.003
日期:2013.1
Asymmetric copper-catalysed intramolecular C–Hinsertionreactions of α-diazosulfones in the presence of various group I salts are reported leading to substantial variation in reaction efficiencies and enantioselectivities. The borate additives NaBARF and KBARF were found to be the most effective additives for permitting highly enantioselective syntheses with short reactions times and high efficiency