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A simple and efficient synthesis of substituted 2,2'-bithiophene and 2,2':5',2″-terthiophene. 2014

Anastasia S Kostyuchenko, and Alexey M Averkov, and Alexander S Fisyuk
Department of Organic Chemistry, Omsk F. M. Dostoevsky State University , Mira Ave., 55a, 644077 Omsk, Russia.

A simple and efficient approach is developed for the synthesis of substituted 2,2'-bithiophene- and 2,2':5',2″-terthiophene-5-carboxylic acids and esters which is based on thiophene ring closure in the Fiesselmann reaction. Using this method, derivatives containing a long alkyl chain with or without an end functional group or an aryl substituent can be conveniently prepared.

UI MeSH Term Description Entries
D007659 Ketones Organic compounds containing a carbonyl group Ketone
D002264 Carboxylic Acids Organic compounds containing the carboxy group (-COOH). This group of compounds includes amino acids and fatty acids. Carboxylic acids can be saturated, unsaturated, or aromatic. Carboxylic Acid,Acid, Carboxylic,Acids, Carboxylic
D004952 Esters Compounds derived from organic or inorganic acids in which at least one hydroxyl group is replaced by an –O-alkyl or another organic group. They can be represented by the structure formula RCOOR’ and are usually formed by the reaction between an acid and an alcohol with elimination of water. Ester
D013876 Thiophenes A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur. Thiophene
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular

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