Rh(III) and Ir(III)Cp* Complexes Provide Complementary Regioselectivity Profiles in Intermolecular Allylic C–H Amidation Reactions
作者:Jacob S. Burman、Robert J. Harris、Caitlin M. B. Farr、John Bacsa、Simon B. Blakey
DOI:10.1021/acscatal.9b01338
日期:2019.6.7
regioselective allylic C–H amidation of mono-, di-, and trisubstituted olefins has been developed. Specifically, the combination of dioxazolone reagents with RhCp* and IrCp* catalysts is reported to promote reactions with complementary regioselectivites to those previously observed in Pd-catalyzed and Ag-promoted Rh-catalyzed reactions. We report that catalyst matching with substrate class is essential for
Copper-Catalyzed Intramolecular Electrophilic Carbofunctionalization of Allylic Amides
作者:Elise Cahard、Nadine Bremeyer、Matthew J. Gaunt
DOI:10.1002/anie.201303724
日期:2013.8.26
An endo‐selective copper‐catalyzed oxyarylation and oxyvinylation of allylic amides was developed. The products are the six‐membered ring oxazines and are formed exclusively as the anti isomers. A range of substituted allylic amides and a wide selection of diaryliodonium and vinyl(aryl)iodonium triflates are compatible with this transformation.
Nickel‐Catalyzed Switchable Site‐Selective Alkene Hydroalkylation by Temperature Regulation**
作者:Jia‐Wang Wang、De‐Guang Liu、Zhe Chang、Zhen Li、Yao Fu、Xi Lu
DOI:10.1002/anie.202205537
日期:2022.8
A nickel-catalyzed switchable site-selective alkenehydroalkylation was developed. The selection of reaction temperatures led to protocols that provide regiodivergent hydroalkylated products starting from a single alkene substrate.