Photocatalytic copper-catalyzed azide–alkyne cycloaddition click reaction with Cu(ii) coordination polymer

Abstract

Cu(ii) coordination polymers as photocatalysts for the copper-catalyzed azide–alkyne cycloaddition click reaction under household light irradiation in air.

Synthesis of well-defined star, star-block, and miktoarm star biodegradable polymers based on PLLA and PCL by one-pot azide–alkyne click reaction

“…The click reaction has many characteristics such as rapid reaction, high yield, mild reaction conditions, good chemical compatibility, and is widely used in the eld of polymers. [24][25][26][27][28][29][30][31][32][33] In recent years, the 1,3-dipolar cycloaddition click reaction has been widely used in functional chemistry and macromolecular modication in polymer chemistry. The introduction of this technology into the synthesis of star polymers can enable the simple and efficient synthesis of special-structured star copolymers (such as miktoarm star copolymers).…”

Photocatalysis as a green alternative toolkit for the construction of nitrogen-enriched heterocycles via the direct and indirect activation of alkynes/alkenes

“…The long-conjugated system redshifted the maximal UV-visible absorption wavelength to the visible region, slowing down electron and hole recombination. Using this copper( ii ) coordination polymer, several click reactions were successfully carried out in the presence of trimethylamine and ambient light (Table 8J) 56 to produce some triazole derivatives ( 220J ). Triazoles with a 1,4-substitution were the only products, with yields in the range of 43% to 91%.…”

Long-wavelength Fluorogenic Derivatization of Aryl Halides Based on the Formation of Stilbene by Heck Reaction with Vinylbenzenes

“…14,15 It can be expected that longer conjugated system of stilbene than biphenyl provide longwavelength fluorescence. 16,17 Therefore, we evaluated vinylbenzenes as a longwavelength fluorogenic derivatization reagent for aryl halides. Firstly, the fluorescence spectra of the reaction mixture of aryl bromides with vinylbenzene were measured and compared with those of biphenyls.…”