Synthesis of conjugated 2,7-bis(trimethylsilylethynyl)-(phenylethynyl)nfluoren-9-one and 9-(p-methoxyphenyl)-9-methyl derivatives:: optical properties
Synthesis of conjugated 2,7-bis(trimethylsilylethynyl)-(phenylethynyl)nfluoren-9-one and 9-(p-methoxyphenyl)-9-methyl derivatives:: optical properties
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DOI：
10.1016/j.tet.2006.01.058
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发表时间：
2006-04-03
期刊：
影响因子：
2.1
通讯作者：
Díaz, C
中科院分区：
文献类型：
--
作者：
Rodríguez, JG;Tejedor, JL;Díaz, C
合成了2，7-取代的9-芴酮和9，9-二取代的芴，并对其荧光性质进行了分析。共轭2，7-双的合成（三甲基硅基乙炔基）-苯乙炔基芴-9-酮通过2，7-二（卤代）芴-9-酮与2，7-二（卤代）芴-9-酮（或9-（对甲氧基苯基）-9-甲基）之间的杂偶联反应，（或2，7-二溴-9-（对甲氧基苯基）-9-甲基芴）和对三甲基甲硅烷基乙炔基（苯乙炔基）（n）（n = 1，2）的发散合成。π-扩展的共轭化合物显示出荧光辐射发射（蓝光发射），对于9-（对甲氧基苯基）-9-甲基-2，7-双（三甲基甲硅烷基乙炔基）-（苯基乙炔基）（n）芴具有重要的量子产率，其随着共轭而增加。(c)2006爱思唯尔有限公司保留所有权利。
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)(n)fluoren-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)-9methylfluorene) and p-trimethylsitylethynyl(phenylethynyl)(n) (n = 1,2), catalyzed by the dichloro bis(triphenylphosphine)palladium and cuprous iodide system, in a divergent synthesis. The pi-extended conjugated compounds exhibit fluorescence radiation emission (blue light-emitting), with important quantum yield for the 9-(p-methoxyphenyl)-9-methyl-2,7-bis(trimethylsilylethynyl)-(phenylethynyl)(n)fluorenes which increases with the conjugation. (c) 2006 Elsevier Ltd. All rights reserved.