Synthesis, Structure, and Properties of Amino‐Substituted Benzhydrylium Ions – A Link between Ordinary Carbocations and Neutral Electrophiles
作者:Robert J. Mayer、Nathalie Hampel、Peter Mayer、Armin R. Ofial、Herbert Mayr
DOI:10.1002/ejoc.201800835
日期:2019.1.23
Optimized synthetic procedures for the straightforwardaccess to eleven amino‐substituted diarylmethylium tetrafluoroborates are described. These benzhydrylium ions cover a range of seven orders of magnitude in electrophilicity and provide a link between ordinary carbocations and neutral electrophiles. Five of these highly stabilized benzhydrylium tetrafluoroborates were characterized by single‐crystal