Copper iodide-catalyzed cyclization of (Z)-chalcogenoenynes

Org Lett. 2008 Nov 6;10(21):4983-6. doi: 10.1021/ol802060f. Epub 2008 Oct 1.

Abstract

We present here our results of the efficient copper-catalyzed cyclizations of chalcogenoenynes and establish a route to obtain 3-substituted chalcogenophenes in good to excellent yields. In addition, the obtained chalcogenophenes were readily transformed to more complex products using the palladium-catalyzed cross-coupling reactions with boronic acids to give Suzuki-type products in good yields.