A One-Pot Synthesis of Constitutionally Unsymmetrical Rotaxanes Using Sequential CuI-Catalyzed Azide–Alkyne Cycloadditions
作者:Jason M. Spruell、William R. Dichtel、James R. Heath、J. Fraser Stoddart
DOI:10.1002/chem.200800067
日期:2008.5.9
A one-pot sequential Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) strategy is presented for the synthesis of constitutionally unsymmetrical cyclobis(paraquat-p-phenylene)-based rotaxanes in good yields from simple starting materials. The methodology consists of performing multiple CuAAC reactions to stopper a pseudorotaxane in a stepwise manner, the order of which is controlled through silyl-protection
Synthesis, photophysical, and electrochemical properties of triazolyl dendrimers with thiazolylchalcone surface unit
作者:Kannan Rajavelu、Perumal Rajakumar
DOI:10.1080/00397911.2017.1385815
日期:2018.1.2
ABSTRACT Synthesis of novel triazolyl dendrimers with thiazolylchalcone surface group and triazole as bridging unit has been achieved in good yields by click chemistry through convergent approach. All the triazolyl dendrimers showed an absorption band between 293 and 336 nm and an emission band between 430 and 435 nm. The intensity of absorption and emission bands increases on increasing the number
Two water-soluble organic cages were synthesized through a three-fold click reaction, followed by N-methylation and anion exchange. The cages bind to the HPTS (8-hydroxypyrene-1,3,6-trisulfonic acid trisodium salt) dye and quench its emission. The cage⊂HPTS complexes exhibit turn-on emission to sense ATP with a nanomolar detection limit, both in water and in human serum matrix.