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DOI: 10.1039/A605474I (Paper) Reference Section for: J. Chem. Soc., Perkin Trans. 1, 1997, 945-948

Tris(2,4-pentanedionato)vanadium-catalysed cyclotrimerization and polymerization of 4-(N,N-dimethylamino)phenylethyne: X-ray structure of 1,2,4-tris[4-(N,N -dimethylamino)phenyl]benzene

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J. Gonzalo Rodríguez, Rosa Martín-Villamil and Isabel Fonseca

Abstract

Tris(pentane-2,4-dionato)vanadium-catalysed polymerization of 4-(N,N-dimethylamino)phenylethyne gave a polyene with π-conjugated donor substituents. Similarly, cyclotrimerization of the acetylene derivative gave a mixture of 1,2,4- and 1,3,5-tris[4-(N,N-dimethylamino)phenyl]benzene in variable yield, depending on the reaction conditions employed. The molecular structure of the main 1,2,4- isomer was determined by X-ray diffraction methods.

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