title: A novel palladium-catalyzed synthesis of phenanthrenes from ortho-substituted aryl iodides and diphenyl- or alkylphenylacetylenes.
abstract: [reaction--see text] 1,5-Selectively disubstituted 9,10-diphenyl- or alkylphenylphenanthrenes are obtained by reaction of ortho-substituted aryl iodides and diphenyl- or alkylphenylacetylenes in the presence of palladium and norbornene as catalysts. The reaction outcome is controlled by the steric effect exerted by the ortho substituent in the aryl iodide.
authors.affiliation: Dipartimento di Chimica Organica e Industriale, Università di Parma, Parco Area delle Scienze, 17A, I-43100 Parma, Italy. marta.catellani@unipr.it
authors.forename: M
authors.initials: M
authors.lastname: Catellani
authors.forename: E
authors.initials: E
authors.lastname: Motti
authors.forename: S
authors.initials: S
authors.lastname: Baratta