Related Experiment Video
Updated: Apr 18, 2026

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Regioselective synthesis of tetraphenyl-1,3-butadienes with aggregation-induced emission
Yamuna Ezhumalai1, Tsai-Hui Wang, Hsiu-Fu Hsu
1Department of Chemistry, Tamkang University , Tamsui 251, Taiwan.
Abstract:
In the presence of substoichiometric amounts of Co2(CO)8, internal bisarylalkynes undergo reductive dimerization with good to excellent yields. The Co2(CO)8-induced reactions described are experimentally quite simple and provide a very useful synthetic procedure for the synthesis of tetraphenylbutadienes which exhibit aggregation-induced emission enhancement, i.e., weak emission in good solvents but strong fluorescence in solvents that lead toward formation of aggregates or in the solid state.
More Related Videos
Related Concept Videos
Electrophilic Addition of HX to 1,3-Butadiene: Thermodynamic vs Kinetic Control
Electrophilic 1,2- and 1,4-Addition of HX to 1,3-Butadiene
Electrophilic 1,2- and 1,4-Addition of X2 to 1,3-Butadiene
Cycloaddition Reactions: MO Requirements for Photochemical Activation
Thermal and Photochemical Electrocyclic Reactions: Overview
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation

