Synthesis and characterization of monodisperse oligofluorenes

J Jo, C Chi, S Höger, G Wegner…

Index: Jo, Jungho; Chi, Chunyan; Hoeger, Sigurd; Wegner, Gerhard; Yoon, Do Y. Chemistry - A European Journal, 2004 , vol. 10, # 11 p. 2681 - 2688

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Citation Number: 190

Abstract

Abstract An efficient synthesis of 9, 9-bis (2-ethylhexyl) fluorene oligomers up to the heptamer is reported, with repetitive Suzuki and Yamamoto coupling reactions employed in the synthesis. The key steps for preparation of the essential intermediates include Pd- catalyzed transformation of aryl bromides to aryl boronic esters (Miyaura reaction) and the application of the much higher reactivity of aryl boronic esters over aryl bromides in the Pd ...