@article {66292,
	title = {Zeo-Click Synthesis: Copper-Zeolite-Catalyzed Synthesis of Ynamides},
	journal = {ADV SYNTH CATALADV SYNTH CATAL},
	volume = {356},
	year = {2014},
	month = {2014},
	pages = {3842-3848},
	abstract = {Copper(I)-zeolites, especially copper(I)-ultra stable Y zeolite (USY), are very efficient heterogeneous catalysts for the coupling of functionalized 1-bromoalkynes and various nitrogen derivatives. Under these conditions, sulfonylated alkyl- or arylamines and various N-heterocycles, such as oxazolidinones or indoles, could be efficiently transformed into the corresponding\&nbsp;N-alkynyl derivatives. However, imidazoles gave addition products rather than coupling products. The reaction conditions proved compatible with a variety of functional and protecting groups. Such zeolitic catalysts can be recycled and reused at least five times without significant deactivation. Low catalyst loading could be used (4 mol\%) and as low as\&nbsp;0.8 mol\%\&nbsp;of this heterogeneous copper catalyst still gave good conversion and yields. \&nbsp; \&nbsp;},
	author = {Harkat, Hassina and Borgh{\`e}se, Sophie and Nigris, Matteo De and Kiselev, Serguei and B{\'e}n{\'e}teau, Val{\'e}rie and Pale, Patrick}
}
