Related Experiment Video
Updated: Sep 28, 2025

Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
Visible-Light-Mediated Three-Component Radical Iodosulfonylative Cyclization of Enynes
Qi Cheng1, Fengrong Zhang1, Xiaoyun Chen2
1School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China.
Abstract:
An efficient three-component radical iodosulfonylative cyclization of enynes is described. The visible-light irradiation of iodoform with sulfinates enables sulfonyl radical generation under catalyst- and oxidant-free conditions and triggers the radical addition, cyclization and iodination cascade reactions, giving various vinyl iodide containing sulfones in moderate to good yields.
More Related Videos
08:12A Two-Step Protocol for Umpolung Functionalization of Ketones Via Enolonium Species
Published on: August 16, 2018
09:54Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes
Published on: September 12, 2018
Related Concept Videos
Cycloaddition Reactions: MO Requirements for Photochemical Activation
Thermal and Photochemical Electrocyclic Reactions: Overview
Radical Reactivity: Nucleophilic Radicals
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Radical Reactivity: Intramolecular vs Intermolecular
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation