Synthesis of Phenanthrene-based Polycycles by Gold(I)-Catalyzed Cyclization of Biphenyl-Embedded Trienynes
Ana Milián, Patricia García-García,* Juan J. Vaquero, Roberto Sanz, Manuel Ángel Fernández-Rodríguez*
Adv. Synth. Catal. 2022, Accepted Articles
DOI: 10.1002/adsc.202200887
| Gold(I)-catalyzed cyclization of o-alkenyl-o’-alkynylbiaryls in the presence of external or internal nucleophiles provides a straightforward access to phenanthrene-based polycycles, which are of considerable interest in materials science. Thus, their reactions with alcohols yield functionalized dihydrophenanthrenes, in a process that can also be carried out intramolecularly to provide phenanthrene-derived heteropolycyclic compounds. Moreover, benzo[b]triphenylenes can be synthesized from o-methoxyvinyl-o’-alkynylbiaryls, in a reaction in which an (hetero)aryl substituent at the triple bond acts as an internal nucleophile. |