α‐Functionalisation of Ketones Through Metal‐Free Electrophilic Activation
作者:Wojciech Zawodny、Christopher J. Teskey、Magdalena Mishevska、Martin Völkl、Boris Maryasin、Leticia González、Nuno Maulide
DOI:10.1002/anie.202006398
日期:2020.11.16
electrophilic intermediates that can undergo a variety of transformations when treated with nucleophiles. This electrophilic ketone activation gives access to α‐arylated and α‐oxyaminated acetophenones under metal‐free conditions in moderate to excellent yields and enables extension to the synthesis of arylated morpholines via generation of vinylsulfonium salts. Computational investigations confirmed the transient
Redox-Neutral Arylations of Vinyl Cation Intermediates
作者:Daniel Kaiser、Luis F. Veiros、Nuno Maulide
DOI:10.1002/adsc.201600860
日期:2017.1.4
present a new unified concept for C−C bond formation under redox‐neutral conditions. Our strategy hinges upon interception of a vinyl cation with a sulfoxide resulting in simultaneous C–C and C−O bond formation and arylation. A range of structurally diverse vinyl cations are generated in situ in the presence of a sulfoxide, resulting in hydrative arylation, direct arylation of enol triflates and interrupted