초록 |
The homocoupling of terminal alkynes is a straightforward method for the synthesis of buta-1,3-diynes, which are important building blocks in the organic synthesis of natural products, pharmaceuticals, organic/inorganic composites, and polymers. Since Rossi’s group used a palladium/CuI catalytic system to catalyze the homocoupling of terminal alkynes, this method has attracted a great deal of interest due to its mildness and wide-ranging substituent tolerance. Taking advantage of these facts, herein we will present the efficient strategy for the convergent synthesis of emissive Fréchet-type dendrimers containing a chromophore from alkyne focal point functionalized Fréchet-type dendrons via homo-coupling reaction of terminal alkyne which may be a kind of new click chemistry. |