Copper-catalyzed three-component reaction of ethynylstibanes, organic azides, and selenium: A simple and efficient synthesis of novel selenides and diselenides having 1,2,3-triazole rings

Add time:08/18/2019    Source:sciencedirect.com

A simple method for the synthesis of monoselenides and diselenides having 1,2,3-triazole ring is described herein. The three component reaction of ethynylstibanes, organic azides, and selenium powder is catalyzed by CuI (10 mol%) using 1,10-phenanthroline as the ligand (10 mol%) under aerobic conditions. Either selenides or diselenides can be synthesized by selecting the appropriate amount of selenium powder for otherwise identical reaction conditions. The obtained selenides and diselenides having a 1,2,3-triazole ring are all novel compounds. By using an antimony reagent, this one-pot reaction provides regioselective double Se-arylation under simple reaction conditions.

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