Iodide acceleration in the Pd-catalyzed coupling of aromatic 1,2-ditriflates with alkynes: Synthesis of enediynes
摘要:
Aryl enediynes have been synthesized in a one-pot procedure by a Pd-catalyzed coupling of terminal alkynes and ortho-aryl ditriflates. A variety of substrates have been examined. Copyright (C) 1996 Elsevier Science Ltd
Cu-Catalyzed oxidative 1 : 2 couplings of arynes with nucleophilic terminalalkynesunderaerobicconditions are described herein. A mechanistic investigation revealed a plausible involvement of an aryl-Cu(III)-generating pathway. By this method, ubiquitous arenediynes can be efficiently assembled in a single step under mild conditions.