The pairing of charged π-electronic systems and their ordered arrangement have been
achieved by iπ–iπ interactions that are derived from synergetically worked electrostatic and …

Conspectus Cyclopropenium ions are the smallest class of aromatic compounds, satisfying
Hückel's rules of aromaticity with two π electrons within a three-membered ring. First …

Cyclopropanation reactions of carbenes with arenes provide a straightforward pathway to
norcaradienes or cycloheptatrienes. This reaction normally requires harsh reaction …

A curved sp2 carbon scaffold containing fused pentagon and heptagon units (1) was
synthesized by Pd‐catalyzed [5+ 2] annulation from a 3, 9‐diboraperylene precursor and …

Herein, host–guest complexation between pagoda [n] arenes (n= 4, P4; n= 5, P5) and
tropylium cation (G) was investigated in detail. It was found that both P4 and P5 showed …

This review focuses on the introduction and early development, in solution, of phase-transfer
catalyzed (PTC) reactions to afford racemic or enantioenriched natural and unnatural amino …

Chiral 1-pyrrolines containing a nitrile motif serve as crucial structural scaffolds in
biologically active molecules and exhibit diversity as building blocks owing to their valuable …

The carbonyl–olefin metathesis (COM) reaction is a highly valuable chemical transformation
in a broad range of applications. However, its scope is much less explored compared to …

Herein, we describe the application of a nonbenzenoid aromatic carbocation, namely
tropylium, as an organic Lewis acid catalyst in O–H functionalization reactions of …

The carbonyl-alkyne metathesis (CAM) reaction is a versatile, stereoselective, and atom-
economical method to access a diverse range of α, β-unsaturated carbonyl compounds …