The different methods for the hydroarylation of alkynes (also known simply as arylation of alkynes or alkenylation of arenes) catalyzed by transition metals are presented as a function of the proposed mechanisms. Related iodonium-promoted and protic acid-catalyzed cyclizations of alkynyl arenes are also reviewed.
![Transition metal-catalyzed hydroarylation of alkynes](https://www.iciq.org/wp-content/uploads/2014/03/Transition-metal-catalyzed_eng_noticies_articles_2005_51.jpg)