Metal-catalyzed cotrimerization of arynes and alkenes.
[Structure: see text] Cotrimerization of arynes and electron-deficient alkenes selectively affords dihydrophenanthrenes or ortho-olefinated biaryls, depending on the catalytic system employed. Our findings support a mechanism involving benzyne and a metallacycloheptadiene as key intermediates.
Quintana
Iago
I
Departamento de Química Organica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
Boersma
Arnold J
AJ
Peña
Diego
D
Pérez
Dolores
D
Guitian
Enrique
E