Palladium-catalyzed unsymmetrical aryl couplings in sequence leading to o-teraryls: dramatic olefin effect on selectivity.
Selectively substituted o-teraryls are obtained by palladium/norbornene-catalyzed reaction of aryl iodides, aryl bromides and aryl boronic acids in ordered sequence; high selectivity is attained thanks to the addition of diethyl maleate acting as palladium ligand.
Motti
Elena
E
Dipartimento di Chimica Organica e Industriale and CIRCC, Università di Parma, V. le G. P. Usberti, 17/A, 43124 Parma, Italy.
Della Ca'
Nicola
N
Deledda
Sara
S
Fava
Emanuela
E
Panciroli
Francesca
F
Catellani
Marta
M