Synthesis of conjugated 2, 7-bis (trimethylsilylethynyl)-(phenylethynyl) n fluoren-9-one and 9-(p-methoxyphenyl)-9-methyl derivatives: optical properties

JG Rodríguez, JL Tejedor, T La Parra, C Díaz

Index: Rodriguez, J. Gonzalo; Tejedor, J. Luis; La Parra, Teresa; Diaz, Cristina Tetrahedron, 2006 , vol. 62, # 14 p. 3355 - 3361

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Citation Number: 45

Abstract

2, 7-Substituted 9-fluorenones and 9, 9-disubstituted fluorene have been synthesized and their fluorescence properties analyzed. The synthesis of conjugated 2, 7-bis (trimethylsilylethynyl)-(phenylethynyl) nfluoren-9-one (or the 9-(p-methoxyphenyl)-9-methyl) structures was carried out by the heterocoupling reaction between the 2, 7-di (halo) fluoren- 9-one (or 2, 7-dibromo-9-(p-methoxyphenyl)-9-methylfluorene) and p-trimethylsilylethynyl ...