Comprehensive Summary Yne‐allenes bearing both a C—C triple bond and an allene unit
are a class of focal substrates in organic synthesis, in view of their structure diversity, high …

Allenes with two carbon–carbon double bonds belong to a unique class of unsaturated
hydrocarbons. The central carbon atom of allene is sp hybridized and forms two σ-bonds …

A BF3-catalyzed atom-economical fluorocarbamoylation reaction of alkyne-tethered
carbamoyl fluorides is reported. The catalyst acts as both a fluoride source and Lewis acid …

Once considered to be exotic species of limited synthetic utility, vinyl cations have recently
been shown to be highly versatile intermediates in a variety of processes. Here, we report a …

A Pd‐catalyzed highly selective tandem reaction of allenynes, aryl or alkenyl iodides, and
sodium azide for the synthesis of bicyclic 1, 2, 3‐triazole derivatives with a very broad …

Disclosed herein is a rhodium (III)-catalyzed intramolecular cyclization of ynamides with
propargyl esters. A variety of highly functionalized 2, 5-dihydropyrroles were obtained in …

This review focuses on the carbocyclization reactions of alkyne-containing substrates
catalyzed by Brønsted acids. The electrophilic activation occurs either by direct protonation …

The Pd (II)-catalyzed intermolecular 1, 2-aminooxygenation and 1, 2-oxyamination between
2-aminophenol substrates and conjugated dienes give distinct chemoselectivities in MeCN …

Due to the unique properties of C− F bonds, organofluorine compounds occupy a privileged
space in the pharmaceutical, agrochemical, and polymer industries. Carbofluorination …

Allenes are a class of unsaturated compounds containing a propadiene structural moiety,
exhibiting essential physiological, pharmacological, and various reactivities. Their (4+ 3) …