Copper-Catalyzed Azide–Alkyne
Cycloaddition
Reaction in Water Using Cyclodextrin as a Phase Transfer Catalyst
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Abstract
1,4-Disubstituted-1,2,3-triazoles were obtained in excellent
yields
from azides and terminal alkynes in H<sub>2</sub>O in the presence
of catalytic amount of β-cyclodextrin as a phase transfer catalyst.
Also, a one-pot CuAAC reaction was carried out successfully, affording
1,4-disubstituted-1,2,3-triazoles in good to high yields starting
from an alkyl bromide, sodium azide, and terminal alkyne