Synthesis of Highly Substituted Cyclobutanones by a One‐Pot Keteniminium‐Enamine Process
作者:Dylan Dagoneau、Amandine Kolleth、Pierre Quinodoz、Beyza Horoz、Saron Catak、Alexandre Lumbroso、Sarah Sulzer‐Mossé、Alain De Mesmaeker
DOI:10.1002/hlca.202100022
日期:2021.5
synthesis of highly substitutedcyclobutanones. This process relies on first a [2+2] cycloaddition involving a keteniminium salt intermediate with an alkene followed by isomerization of the resulting cyclobutaniminium salt into its cyclic enamine form and then reaction of the latter with an electrophile. The adduct can be either hydrolyzed or reduced to give the corresponding cyclobutanone or cyclobutanamine