Journal of Chemical Research

Synthesis and spectral properties of 2, 7-di-tert-butyl-4, 9-bis (arylethynyl)-and 4, 10-bis (arylethynyl) pyrenes

J Hu, A Paudel, T Yamato

Index: Hu, Jian-Yong; Paudel, Arjun; Yamato, Takehiko Journal of Chemical Research, 2009 , # 2 p. 109 - 113

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Abstract

Formylation of 2, 7-di-tert-butylpyrene with dichloromethyl methyl ether in the presense of AlCl3 afforded a mixture of 2, 7-di-tert-butylpyrene-4, 9-biscarbaldehyde and 4, 10- biscarbaldehyde in the ratio of 75: 25, from which the corresponding bis (arylethynyl) pyrenes were obtained by the Wittig reaction with aryl methyl phosphonium ylides followed by bromination and dehydrobromination.