Transition-metal-catalyzed regioselective aroyl- and trifluoro- acetylthiolation of alkynes using thioesters
Intermolecular CO-retained carbothiolation of alkynes using thioesters took place to afford β-SR substituted enone derivatives; the choice of catalyst (Pd(dba)2-dppe) and the introduction of a CF3 group into the thioesters are the key to achieving the transformation. The Royal Society of Chemistry 2009.