Synthesis of Anthryl-Substituted Bithienylpyridines and their N-Methylpyridinium Salts

F Effenberger, JM Endtner, B Miehlich, JSR Münter…

Index: Effenberger; Endtner; Miehlich; Munter; Vollmer Synthesis, 2000 , # 9 p. 1229 - 1236

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Citation Number: 9

Abstract

Abstract: The synthesis of bithiophenes with anthracene and pyridine as terminal groups is described. 3-and 4-thienylpyridines 3, derived from thiopheneboronic acid 1 and the respective bromopyridines 2a, b, were coupled with 2-(9-anthryl)-5-iodothiophene 4 to give the isomeric (9-anthryl) bithienylpyridines 5a, b. In order to introduce a methylene spacer between the donor anthracene and bithiophene, 5-(2, 2'-bithienyl) magnesium bromide 7 ...