Three-component regioselective carboamidation of 1,3-enynes via rhodium(III)-catalyzed C-H activation

Chem Commun (Camb). 2023 May 30;59(44):6690-6693. doi: 10.1039/d3cc01666h.

Abstract

Rhodium-catalyzed regio- and stereoselective three-component carboamidation of 1,3-enynes has been realized using indoles and dioxazolones as the functionalizing reagents. A wide range of multi-substituted skipped 1,4-dienes have been constructed in good yields and excellent stereoselectivity. The stereoselectivity is under substrate control. 1,3-Enynes bearing a relatively bulky alkyne terminus reacted with Z-selectivity. In contrast, a sterically less hindered alkyne terminus tends to predominantly give the E-configured skipped diene.